NIMH Data Archive - Data

Genomics

Neuroimaging

Phenotype¹

New Trial
Clinical Trial

¹ Numbers reported are subjects by age

New Project
Grant/Project Number

Format should be in the following format: Activity Code, Institute Abbreviation, and Serial Number. Grant Type, Support Year, and Suffix should be excluded. For example, grant 1R01MH123456-01A1 should be entered R01MH123456

Collection - Use Existing Experiment

To associate an experiment to the current collection, just select an axperiment from the table below then click the associate experiment button to persist your changes (saving the collection is not required). Note that once an experiment has been associated to two or more collections, the experiment will not longer be editable.

The table search feature is case insensitive and targets the experiment id, experiment name and experiment type columns. The experiment id is searched only when the search term entered is a number, and filtered using a startsWith comparison. When the search term is not numeric the experiment name is used to filter the results.

Select	Experiment Id	Experiment Name	Experiment Type	Created On

24	HI-NGS_R1	Omics	02/16/2011
475	MB1-10 (CHOP)	Omics	06/07/2016
490	Illumina Infinium PsychArray BeadChip Assay	Omics	07/07/2016
501	PharmacoBOLD Resting State	fMRI	07/27/2016
506	PVPREF	Omics	08/05/2016
509	ABC-CT Resting v2	EEG	08/18/2016
13	Comparison of FI expression in Autistic and Neurotypical Homo Sapiens	Omics	12/28/2010
18	AGRE/Broad Affymetrix 5.0 Genotype Experiment	Omics	01/06/2011
22	Stitching PCR Sequencing	Omics	02/14/2011
26	ASD_Methylation	Omics	03/01/2011
29	Microarray family 03 (father, mother, sibling)	Omics	03/24/2011
37	Standard paired-end sequencing of BCRs	Omics	04/19/2011
38	Illumina Mate-Pair BCR sequencing	Omics	04/19/2011
39	Custom Jumping Libraries	Omics	04/19/2011
40	Custom CapBP	Omics	04/19/2011
41	Immunofluorescence	Omics	05/11/2011
43	Autism brain sample genotyping, Illumina	Omics	05/16/2011
47	ARRA Autism Sequencing Collaboration at Baylor. SOLiD 4 System	Omics	08/01/2011
53	AGRE Omni1-quad	Omics	10/11/2011
59	AGP genotyping	Omics	04/03/2012
60	Ultradeep 454 sequencing of synaptic genes from postmortem cerebella of individuals with ASD and neurotypical controls	Omics	06/23/2012
63	Microemulsion PCR and Targeted Resequencing for Variant Detection in ASD	Omics	07/20/2012
76	Whole Genome Sequencing in Autism Families	Omics	01/03/2013
519	Resting	fMRI	11/08/2016
90	Genotyped IAN Samples	Omics	07/09/2013
91	NJLAGS Axiom Genotyping Array	Omics	07/16/2013
93	AGP genotyping (CNV)	Omics	09/06/2013
106	Longitudinal Sleep Study. H20 200. Channel set 2	EEG	11/07/2013
107	Longitudinal Sleep Study. H20 200. Channel set 3	EEG	11/07/2013
108	Longitudinal Sleep Study. AURA 200	EEG	11/07/2013
105	Longitudinal Sleep Study. H20 200. Channel set 1	EEG	11/07/2013
109	Longitudinal Sleep Study. AURA 400	EEG	11/07/2013
116	Gene Expression Analysis WG-6	Omics	01/07/2014
131	Jeste Lab UCLA ACEii: Charlie Brown and Sesame Street - Project 1	Eye Tracking	02/27/2014
132	Jeste Lab UCLA ACEii: Animacy - Project 1	Eye Tracking	02/27/2014
133	Jeste Lab UCLA ACEii: Mom Stranger - Project 2	Eye Tracking	02/27/2014
134	Jeste Lab UCLA ACEii: Face Emotion - Project 3	Eye Tracking	02/27/2014
145	AGRE/FMR1_Illumina.JHU	Omics	04/14/2014
146	AGRE/MECP2_Sanger.JHU	Omics	04/14/2014
147	AGRE/MECP2_Junior.JHU	Omics	04/14/2014
151	Candidate Gene Identification in familial Autism	Omics	06/09/2014
152	NJLAGS Whole Genome Sequencing	Omics	07/01/2014
154	Math Autism Study - Vinod Menon	fMRI	07/15/2014
155	Resting	fMRI	07/25/2014
156	Speech	fMRI	07/25/2014
159	Emotion	fMRI	07/25/2014
160	syllable contrast	EEG	07/29/2014
167	School-age naturalistic stimuli	Eye Tracking	09/19/2014
44	AGRE/Broad Affymetrix 5.0 Genotype Experiment	Omics	06/27/2011
45	Exome Sequencing of 20 Sporadic Cases of Autism Spectrum Disorder	Omics	07/15/2011

Collection - Add Experiment

Add Supporting Documentation

Funding Source:
URL:

To add an existing Data Structure, enter its title in the search bar. If you need to request changes, select the indicator "No, it requires changes to meet research needs" after selecting the Structure, and upload the file with the request changes specific to the selected Data Structure. Your file should follow the Request Changes Procedure. If the Data Structure does not exist, select "Request New Data Structure" and upload the appropriate zip file.

Use/Modify Existing Data Structure

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Targeted Enrollment:

Initial Submission Date:

Initial Share Date:

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Data Structures:

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The Data Expected list for this Collection shows some raw data as missing. Contact the NDA Help Desk with any questions.

Please confirm that you will not be enrolling any more subjects and that all raw data has been collected and submitted.

Collection Updated

Your Collection is now in Data Analysis phase and exempt from biannual submissions. Analyzed data is still expected prior to publication or no later than the project end date.

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[CMS]

Unable to change collection phase where targeted enrollment is less than 90%

You have requested to move the sharing dates for the following assessments:

Data Expected Item	Original Sharing Date	New Sharing Date

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Longitudinal Studies of Autism Spectrum Disorders: From 2 to 23 #1965

General
Experiments (0)
Shared Data
Publications (65)
Data Expected (14)
Associated Studies (4)

Collection Title	Collection Investigators	Collection Description
Collection Title:	Longitudinal Studies of Autism Spectrum Disorders: From 2 to 23
Collection Investigators:	Cathy Lord, Ph. D
Collection Description:	Longitudinal Studies of Autism Spectrum Disorders (ASD): From 2 to 23 - Increasing Understanding of Nonverbal School-Aged Children and Children with Limited Language Skills
Data Repository:	NIMH Data Archive
Permission Group:
Collection Creation Date:	07/12/2012
Collection Phase:	Funding Completed
Collection Sub-Phase:	Close Out
Blinded Clinical Trial:	No
Total Funded Amount:	$1,611,971.00
Subjects Shared:	63

{"values":[]}

{"values":[["Not Defined",71],["Autism Spectrum Mildly Affected",2],["Typical Control",5],["Autism Spectrum Affected",2],["Autism Spectrum Severely Affected",11]]}

Loading Chart...

Funding Sources:

Funding Source Name	Funding Source URL
NIH - Extramural	None

Supporting Documentation:

Grant Information:

Project Number	Project Title	Start Date	End Date	Planned Enrollment	Actual Enrollment	Organization	Funds Obligated
R01MH081873-01	Longitudinal Studies of Autism Spectrum Disorders: 2 to 23	09/01/2008	05/31/2013	219	175	UNIVERSITY OF MICHIGAN AT ANN ARBOR	$1,611,971.00

Clinical Trials:

helpcenter.collection.general-tab

Collection - General Tab

Fields available for edit on the top portion of the page include:

Collection Title
Investigators
Collection Description
Collection Phase
Funding Source
Clinical Trials

Collection Phase: The current status of a research project submitting data to an NDA Collection, based on the timing of the award and/or the data that have been submitted.

Pre-Enrollment: The default entry made when the NDA Collection is created.
Enrolling: Data have been submitted to the NDA Collection or the NDA Data Expected initial submission date has been reached for at least one data structure category in the NDA Collection.
Data Analysis: Subject level data collection for the research project is completed and has been submitted to the NDA Collection. The NDA Collection owner or the NDA Help Desk may set this phase when they’ve confirmed data submission is complete and submitted subject counts match at least 90% of the target enrollment numbers in the NDA Data Expected. Data submission reminders will be turned off for the NDA Collection.
Funding Completed: The NIH grant award (or awards) associated with the NDA Collection has reached its end date. NDA Collections in Funding Completed phase are assigned a subphase to indicate the status of data submission.
- The Data Expected Subphase indicates that NDA expects more data will be submitted
- The Closeout Subphase indicates the data submission is complete.
- The Sharing Not Met Subphase indicates that data submission was not completed as expected.

Blinded Clinical Trial Status:

This status is set by a Collection Owner and indicates the research project is a double blinded clinical trial. When selected, the public view of Data Expected will show the Data Expected items and the Submission Dates, but the targeted enrollment and subjects submitted counts will not be displayed.
Targeted enrollment and subjects submitted counts are visible only to NDA Administrators and to the NDA Collection or as the NDA Collection Owner.
When an NDA Collection that is flagged Blinded Clinical Trial reaches the maximum data sharing date for that Data Repository (see https://nda.nih.gov/nda/sharing-regimen.html), the embargo on Data Expected information is released.

Funding Source

The organization(s) responsible for providing the funding is listed here.

Supporting Documentation

Users with Submission privileges, as well as Collection Owners, Program Officers, and those with Administrator privileges, may upload and attach supporting documentation. By default, supporting documentation is shared to the general public, however, the option is also available to limit this information to qualified researchers only.

Grant Information

Identifiable details are displayed about the Project of which the Collection was derived from. You may click in the Project Number to view a full report of the Project captured by the NIH.

Clinical Trials

Any data that is collected to support or further the research of clinical studies will be available here. Collection Owners and those with Administrator privileges may add new clinical trials.

Frequently Asked Questions

How does the NIMH Data Archive (NDA) determine which Permission Group data are submitted into?

During Collection creation, NDA staff determine the appropriate Permission Group based on the type of data to be submitted, the type of access that will be available to data access users, and the information provided by the Program Officer during grant award.
How do I know when a NDA Collection has been created?

When a Collection is created by NDA staff, an email notification will automatically be sent to the PI(s) of the grant(s) associated with the Collection to notify them.
Is a single grant number ever associated with more than one Collection?

The NDA system does not allow for a single grant to be associated with more than one Collection; therefore, a single grant will not be listed in the Grant Information section of a Collection for more than one Collection.
Why is there sometimes more than one grant included in a Collection?

In general, each Collection is associated with only one grant; however, multiple grants may be associated if the grant has multiple competing segments for the same grant number or if multiple different grants are all working on the same project and it makes sense to hold the data in one Collection (e.g., Cooperative Agreements).

Glossary

Administrator Privilege

A privilege provided to a user associated with an NDA Collection or NDA Study whereby that user can perform a full range of actions including providing privileges to other users.
Collection Owner

Generally, the Collection Owner is the contact PI listed on a grant. Only one NDA user is listed as the Collection owner. Most automated emails are primarily sent to the Collection Owner.
Collection Phase
The Collection Phase provides information on data submission as opposed to grant/project completion so while the Collection phase and grant/project phase may be closely related they are often different. Collection users with Administrative Privileges are encouraged to edit the Collection Phase. The Program Officer as listed in eRA (for NIH funded grants) may also edit this field. Changes must be saved by clicking the Save button at the bottom of the page. This field is sortable alphabetically in ascending or descending order. Collection Phase options include:
- Pre-Enrollment: A grant/project has started, but has not yet enrolled subjects.
- Enrolling: A grant/project has begun enrolling subjects. Data submission is likely ongoing at this point.
- Data Analysis: A grant/project has completed enrolling subjects and has completed all data submissions.
- Funding Completed: A grant/project has reached the project end date.
Collection Title

An editable field with the title of the Collection, which is often the title of the grant associated with the Collection.
Grant

Provides the grant number(s) for the grant(s) associated with the Collection. The field is a hyperlink so clicking on the Grant number will direct the user to the grant information in the NIH Research Portfolio Online Reporting Tools (RePORT) page.
Supporting Documentation

Various documents and materials to enable efficient use of the data by investigators unfamiliar with the project and may include the research protocol, questionnaires, and study manuals.
NIH Research Initiative

NDA Collections may be organized by scientific similarity into NIH Research Initiatives, to facilitate query tool user experience. NIH Research Initiatives map to one or multiple Funding Opportunity Announcements.
Permission Group

Access to shared record-level data in NDA is provisioned at the level of a Permission Group. NDA Permission Groups consist of one or multiple NDA Collections that contain data with the same subject consents.
Planned Enrollment

Number of human subject participants to be enrolled in an NIH-funded clinical research study. The data is provided in competing applications and annual progress reports.
Actual Enrollment

Number of human subjects enrolled in an NIH-funded clinical research study. The data is provided in annual progress reports.
NDA Collection

A virtual container and organization structure for data and associated documentation from one grant or one large project/consortium. It contains tools for tracking data submission and allows investigators to define a wide array of other elements that provide context for the data, including all general information regarding the data and source project, experimental parameters used to collect any event-based data contained in the Collection, methods, and other supporting documentation. They also allow investigators to link underlying data to an NDA Study, defining populations and subpopulations specific to research aims.
Data Use Limitations

Data Use Limitations (DULs) describe the appropriate secondary use of a dataset and are based on the original informed consent of a research participant. NDA only accepts consent-based data use limitations defined by the NIH Office of Science Policy.
Total Subjects Shared

The total number of unique subjects for whom data have been shared and are available for users with permission to access data.

Contact NDA Help Desk

ID	Name	Created Date	Status	Type
No records found.

helpcenter.collection.experiments-tab

Collection - Experiments

The number of Experiments included is displayed in parentheses next to the tab name. You may download all experiments associated with the Collection via the Download button. You may view individual experiments by clicking the Experiment Name and add them to the Filter Cart via the Add to Cart button.

Collection Owners, Program Officers, and users with Submission or Administrative Privileges for the Collection may create or edit an Experiment.

Please note: The creation of an NDA Experiment does not necessarily mean that data collected, according to the defined Experiment, has been submitted or shared.

Frequently Asked Questions

Can an Experiment be associated with more than one Collection?
Yes -see the “Copy” button in the bottom left when viewing an experiment. There are two actions that can be performed via this button:
1. Copy the experiment with intent for modifications.
2. Associate the experiment to the collection. No modifications can be made to the experiment.

Glossary

Experiment Status

An Experiment must be Approved before data using the associated Experiment_ID may be uploaded.
Experiment ID

The ID number automatically generated by NDA which must be included in the appropriate file when uploading data to link the Experiment Definition to the subject record.

Contact NDA Help Desk

Shared Data:

Title	Type	Number of Subjects
Aberrant Behavior Checklist (ABC) - Community	Clinical Assessments	56
Adapted ADOS Module 1	Clinical Assessments	45
Adapted ADOS Module 2	Clinical Assessments	6
Autism Diagnostic Interview, Revised (ADI-R)	Clinical Assessments	59
Autism Diagnostic Observation Schedule (ADOS) - Module 1 (2007)	Clinical Assessments	1
Autism Diagnostic Observation Schedule (ADOS) - Module 2 (2007)	Clinical Assessments	2
Autism Diagnostic Observation Schedule (ADOS)- Module 3 (2007)	Clinical Assessments	3
Autism Diagnostic Observation Schedule, 2nd Edition (ADOS-2) - Module 3	Clinical Assessments	5
Child Behavior Checklist (CBCL) 6-18	Clinical Assessments	57
DAS-II:Differential Ability Scales 2nd Ed. Early Years	Clinical Assessments	45
Mullen Scales of Early Learning	Clinical Assessments	42
Peabody Picture Vocabulary Test, Fourth Edition-Form A	Clinical Assessments	1
Pubertal Development Scale	Clinical Assessments	15
Repetitive Behavior Scale - Revised (RBS-R)	Clinical Assessments	55
Services Log	Clinical Assessments	50
Social Communication Questionnaire (SCQ) - Lifetime	Clinical Assessments	57
TEACCH Transition Assessment Profile	Clinical Assessments	21
Vineland-II - Survey Form (2005)	Clinical Assessments	61
Wide Range Achievement Test 4 (WRAT4)	Clinical Assessments	36

helpcenter.collection.shared-data-tab

Collection - Shared Data

This tab provides a quick overview of the Data Structure title, Data Type, and Number of Subjects that are currently Shared for the Collection. The information presented in this tab is automatically generated by NDA and cannot be edited. If no information is visible on this tab, this would indicate the Collection does not have shared data or the data is private.

The shared data is available to other researchers who have permission to access data in the Collection's designated Permission Group(s). Use the Download button to get all shared data from the Collection to the Filter Cart.

Frequently Asked Questions

How will I know if another researcher uses data that I shared through the NIMH Data Archive (NDA)?

To see what data your project have submitted are being used by a study, simply go the Associated Studies tab of your collection. Alternatively, you may review an NDA Study Attribution Report available on the General tab.
Can I get a supplement to share data from a completed research project?

Often it becomes more difficult to organize and format data electronically after the project has been completed and the information needed to create a GUID may not be available; however, you may still contact a program staff member at the appropriate funding institution for more information.
Can I get a supplement to share data from a research project that is still ongoing?

Unlike completed projects where researchers may not have the information needed to create a GUID and/or where the effort needed to organize and format data becomes prohibitive, ongoing projects have more of an opportunity to overcome these challenges. Please contact a program staff member at the appropriate funding institution for more information.

Glossary

Data Structure

A defined organization and group of Data Elements to represent an electronic definition of a measure, assessment, questionnaire, or collection of data points. Data structures that have been defined in the NDA Data Dictionary are available at https://nda.nih.gov/general-query.html?q=query=data-structure
Data Type

A grouping of data by similar characteristics such as Clinical Assessments, Omics, or Neurosignal data.
Shared

The term 'Shared' generally means available to others; however, there are some slightly different meanings based on what is Shared. A Shared NDA Study is viewable and searchable publicly regardless of the user's role or whether the user has an NDA account. A Shared NDA Study does not necessarily mean that data used in the NDA Study have been shared as this is independently determined. Data are shared according the schedule defined in a Collection's Data Expected Tab and/or in accordance with data sharing expectations in the NDA Data Sharing Terms and Conditions. Additionally, Supporting Documentation uploaded to a Collection may be shared independent of whether data are shared.

Contact NDA Help Desk

Collection Owners and those with Collection Administrator permission, may edit a collection. The following is currently available for Edit on this page:

Publications

Publications relevant to NDA data are listed below. Most displayed publications have been associated with the grant within Pubmed. Use the "+ New Publication" button to add new publications. Publications relevant/not relevant to data expected are categorized. Relevant publications are then linked to the underlying data by selecting the Create Study link. Study provides the ability to define cohorts, assign subjects, define outcome measures and lists the study type, data analysis and results. Analyzed data and results are expected in this way.

PubMed ID	Study	Title	Journal	Authors	Date	Status
38317766	Create Study	Understanding profound autism: implications for stigma and supports.	Frontiers in psychiatry	Clarke, Elaine B; McCauley, James B; Lutz, Amy; Gotelli, Marina; Sheinkopf, Stephen J; Lord, Catherine	January 1, 2024	Not Determined
38153097	Create Study	A longitudinal study of loneliness in autism and other neurodevelopmental disabilities: Coping with loneliness from childhood through adulthood.	Autism : the international journal of research and practice	Schiltz, Hillary; Gohari, Dena; Park, Jamie; Lord, Catherine	June 1, 2024	Not Determined
37668851	Create Study	A Longitudinal Mixed-Methods Characterization of Family Support from Adolescence to Young Adulthood in Autism and Other Developmental Disabilities.	Journal of autism and developmental disorders	Schiltz, Hillary K; Clarke, Elaine; Rosen, Nicole; De La Rosa, Sofi Gomez; Masjedi, Nina; Christopher, Kourtney; Lord, Catherine	September 1, 2024	Not Determined
37381100	Create Study	Social competence as a predictor of adult outcomes in autism spectrum disorder.	Development and psychopathology	Clarke, Elaine B; Lord, Catherine	August 1, 2024	Not Determined
37376983	Create Study	Anxiety, depression, and well-being in autistic adults and adults with other developmental disabilities: A longitudinal cross-lagged analysis.	Autism research : official journal of the International Society for Autism Research	Schiltz, Hillary; Sterrett, Kyle; Singer, Hannah; Lord, Catherine	July 1, 2023	Not Determined
37126032	Create Study	Marital status over 28 years of parents of individuals with autism and other developmental disabilities.	Journal of family psychology : JFP : journal of the Division of Family Psychology of the American Psychological Association (Division 43)	Bahri, Niki; Sterrett, Kyle; Lord, Catherine	September 1, 2023	Not Determined
36367328	Create Study	Teacher- and parent-reported trajectories of maladaptive behaviors among individuals with autism and non-spectrum delays.	Autism research : official journal of the International Society for Autism Research	Rosen, Nicole E; Schiltz, Hillary K; Lord, Catherine	January 1, 2023	Not Determined
36142996	Create Study	Sibling Influences on Trajectories of Maladaptive Behaviors in Autism.	Journal of clinical medicine	Rosen, Nicole E; Schiltz, Hillary K; Lord, Catherine	September 12, 2022	Not Determined
34890046	Create Study	Diagnostic stability in individuals with autism spectrum disorder: insights from a longitudinal follow-up study.	Journal of child psychology and psychiatry, and allied disciplines	Elias, Rebecca; Lord, Catherine	September 1, 2022	Not Determined
34516710	Create Study	Work and well-being: Vocational activity trajectories in young adults with autism spectrum disorder.	Autism research : official journal of the International Society for Autism Research	Clarke, Elaine B; Sterrett, Kyle; Lord, Catherine	December 1, 2021	Not Determined
34120483	Create Study	Influence of siblings on adaptive behavior trajectories in autism spectrum disorder.	Autism : the international journal of research and practice	Rosen, Nicole E; McCauley, James B; Lord, Catherine	January 1, 2022	Not Determined
33633633	Create Study	Predicting Uncertain Multi-Dimensional Adulthood Outcomes From Childhood and Adolescent Data in People Referred to Autism Services.	Frontiers in psychology	Forbes, Gordon; Lord, Catherine; Elias, Rebecca; Pickles, Andrew	January 1, 2021	Not Determined
33220430	Create Study	Post-High School Daily Living Skills in Autism Spectrum Disorder.	Journal of the American Academy of Child and Adolescent Psychiatry	Clarke, Elaine B; McCauley, James B; Lord, Catherine	August 1, 2021	Not Determined
32851813	Create Study	Defining Positive Outcomes in More and Less Cognitively Able Autistic Adults.	Autism research : official journal of the International Society for Autism Research	McCauley, James B; Pickles, Andrew; Huerta, Marisela; Lord, Catherine	September 2020	Not Determined
32677592	Create Study	Trajectories of co-occurring psychopathology symptoms in autism from late childhood to adulthood.	Development and psychopathology	McCauley, James B; Elias, Rebecca; Lord, Catherine	October 1, 2020	Not Determined
32431163	Create Study	Work, living, and the pursuit of happiness: Vocational and psychosocial outcomes for young adults with autism.	Autism : the international journal of research and practice	Lord, Catherine; McCauley, James B; Pepa, Lauren A; Huerta, Marisela; Pickles, Andrew	October 2020	Not Determined
32314393	Create Study	Sex differences in scores on standardized measures of autism symptoms: a multisite integrative data analysis.	Journal of child psychology and psychiatry, and allied disciplines	Kaat, Aaron J; Shui, Amy M; Ghods, Sheila S; Farmer, Cristan A; Esler, Amy N; Thurm, Audrey; Georgiades, Stelios; Kanne, Stephen M; Lord, Catherine; Kim, Young Shin; Bishop, Somer L	January 2021	Not Determined
31957035	Create Study	The adult outcome of children referred for autism: typology and prediction from childhood.	Journal of child psychology and psychiatry, and allied disciplines	Pickles, Andrew; McCauley, James B; Pepa, Lauren A; Huerta, Marisela; Lord, Catherine	July 2020	Not Determined
31949163	Create Study	Autism spectrum disorder.	Nature reviews. Disease primers	Lord, Catherine; Brugha, Traolach S; Charman, Tony; Cusack, James; Dumas, Guillaume; Frazier, Thomas; Jones, Emily J H; Jones, Rebecca M; Pickles, Andrew; State, Matthew W; Taylor, Julie Lounds; Veenstra-VanderWeele, Jeremy	January 16, 2020	Not Determined
31736004	Create Study	The Adapted ADOS: A New Module Set for the Assessment of Minimally Verbal Adolescents and Adults.	Journal of autism and developmental disorders	Bal, Vanessa H; Maye, Melissa; Salzman, Emma; Huerta, Marisela; Pepa, Lauren; Risi, Susan; Lord, Catherine	March 2020	Not Determined
31429087	Create Study	Predictors of longer-term development of expressive language in two independent longitudinal cohorts of language-delayed preschoolers with Autism Spectrum Disorder.	Journal of child psychology and psychiatry, and allied disciplines	Bal, Vanessa H; Fok, Megan; Lord, Catherine; Smith, Isabel M; Mirenda, Pat; Szatmari, Peter; Vaillancourt, Tracy; Volden, Joanne; Waddell, Charlotte; Zwaigenbaum, Lonnie; Bennett, Terry; Duku, Eric; Elsabbagh, Mayada; Georgiades, Stelios; Ungar, Wendy J; Zaidman-Zait, Anat	July 2020	Not Determined
30101492	Create Study	Autism spectrum disorder symptoms from ages 2 to 19 years: Implications for diagnosing adolescents and young adults.	Autism research : official journal of the International Society for Autism Research	Bal VH, Kim SH, Fok M, Lord C	January 2019	Not Determined
28949003	Create Study	Longitudinal follow-up of academic achievement in children with autism from age 2 to 18.	Journal of child psychology and psychiatry, and allied disciplines	Kim, So Hyun; Bal, Vanessa H; Lord, Catherine	March 2018	Not Determined
28638592	Create Study	Evaluating the quality of peer interactions in children and adolescents with autism with the Penn Interactive Peer Play Scale (PIPPS).	Molecular autism	Jones, Rebecca M; Pickles, Andrew; Lord, Catherine	January 2017	Not Relevant
27871640	Create Study	Multidimensional Influences on Autism Symptom Measures: Implications for Use in Etiological Research.	Journal of the American Academy of Child and Adolescent Psychiatry	Havdahl, Karoline Alexandra; Hus Bal, Vanessa; Huerta, Marisela; Pickles, Andrew; Øyen, Anne-Siri; Stoltenberg, Camilla; Lord, Catherine; Bishop, Somer L	December 2016	Not Determined
27282463	Create Study	The autism symptom interview, school-age: A brief telephone interview to identify autism spectrum disorders in 5-to-12-year-old children.	Autism research : official journal of the International Society for Autism Research	Bishop, Somer L; Huerta, Marisela; Gotham, Katherine; Alexandra Havdahl, Karoline; Pickles, Andrew; Duncan, Amie; Hus Bal, Vanessa; Croen, Lisa; Lord, Catherine	January 2017	Not Determined
27090613	Create Study	Use of machine learning to improve autism screening and diagnostic instruments: effectiveness, efficiency, and multi-instrument fusion.	Journal of child psychology and psychiatry, and allied disciplines	Bone, Daniel; Bishop, Somer L; Black, Matthew P; Goodwin, Matthew S; Lord, Catherine; Narayanan, Shrikanth S	August 1, 2016	Not Determined
26908679	Create Study	Autism Spectrum Disorder, Intellectual Disability, and Delayed Walking.	Pediatrics	Bishop, Somer L; Thurm, Audrey; Farmer, Cristan; Lord, Catherine	March 2016	Not Determined
26748412	Create Study	Subdimensions of social-communication impairment in autism spectrum disorder.	Journal of child psychology and psychiatry, and allied disciplines	Bishop, Somer L; Havdahl, Karoline Alexandra; Huerta, Marisela; Lord, Catherine	August 1, 2016	Not Determined
26385796	Create Study	Replication and Comparison of the Newly Proposed ADOS-2, Module 4 Algorithm in ASD Without ID: A Multi-site Study.	Journal of autism and developmental disorders	Pugliese, Cara E; Kenworthy, Lauren; Bal, Vanessa Hus; Wallace, Gregory L; Yerys, Benjamin E; Maddox, Brenna B; White, Susan W; Popal, Haroon; Armour, Anna Chelsea; Miller, Judith; Herrington, John D; Schultz, Robert T; Martin, Alex; Anthony, Laura Gutermuth	December 2015	Not Determined
26140652	Create Study	Utility of the Child Behavior Checklist as a Screener for Autism Spectrum Disorder.	Autism research : official journal of the International Society for Autism Research	Havdahl, K Alexandra; von Tetzchner, Stephen; Huerta, Marisela; Lord, Catherine; Bishop, Somer L	January 2016	Not Determined
25959391	Create Study	Developmental trajectories as autism phenotypes.	American journal of medical genetics. Part C, Seminars in medical genetics	Lord, Catherine; Bishop, Somer; Anderson, Deborah	June 2015	Not Determined
25922445	Create Study	Daily living skills in individuals with autism spectrum disorder from 2 to 21 years of age.	Autism : the international journal of research and practice	Bal, Vanessa Hus; Kim, So-Hyun; Cheong, Daniel; Lord, Catherine	October 2015	Not Determined
25901773	Create Study	Depressive and anxiety symptom trajectories from school age through young adulthood in samples with autism spectrum disorder and developmental delay.	Journal of the American Academy of Child and Adolescent Psychiatry	Gotham, Katherine; Brunwasser, Steven M; Lord, Catherine	May 2015	Not Determined
25832801	Create Study	The Autism Diagnostic Observation Schedule, Toddler Module: Standardized Severity Scores.	Journal of autism and developmental disorders	Esler, Amy N; Bal, Vanessa Hus; Guthrie, Whitney; Wetherby, Amy; Ellis Weismer, Susan; Lord, Catherine	September 2015	Not Determined
25774214	Create Study	The relationship of motor skills and adaptive behavior skills in young children with autism spectrum disorders.	Research in autism spectrum disorders	MacDonald, Megan; Lord, Catherine; Ulrich, Dale	November 2013	Not Determined
25712123	Create Study	Replication of Standardized ADOS Domain Scores in the Simons Simplex Collection.	Autism research : official journal of the International Society for Autism Research	Hus Bal, Vanessa; Lord, Catherine	October 2015	Not Determined
25243378	Create Study	How interview questions are placed in time influences caregiver description of social communication symptoms on the ADI-R.	Journal of child psychology and psychiatry, and allied disciplines	Jones, Rebecca M; Risi, Susan; Wexler, Diana; Anderson, Deborah; Corsello, Christina; Pickles, Andrew; Lord, Catherine	May 2015	Not Relevant
25239176	Create Study	Measurement of nonverbal IQ in autism spectrum disorder: scores in young adulthood compared to early childhood.	Journal of autism and developmental disorders	Bishop, Somer L; Farmer, Cristan; Thurm, Audrey	April 2015	Not Determined
24916450	Create Study	Depression and its measurement in verbal adolescents and adults with autism spectrum disorder.	Autism : the international journal of research and practice	Gotham, Katherine; Unruh, Kathryn; Lord, Catherine	May 2015	Not Relevant
24802136	Create Study	Rumination and perceived impairment associated with depressive symptoms in a verbal adolescent-adult ASD sample.	Autism research : official journal of the International Society for Autism Research	Gotham, Katherine; Bishop, Somer L; Brunwasser, Steven; Lord, Catherine	June 2014	Not Determined
24762385	Create Study	Motor skills and calibrated autism severity in young children with autism spectrum disorder.	Adapted physical activity quarterly : APAQ	MacDonald M, Lord C, Ulrich DA	April 2014	Not Determined
24590409	Create Study	The autism diagnostic observation schedule, module 4: revised algorithm and standardized severity scores.	Journal of autism and developmental disorders	Hus, Vanessa; Lord, Catherine	August 2014	Not Determined
24313878	Create Study	Predicting young adult outcome among more and less cognitively able individuals with autism spectrum disorders.	Journal of child psychology and psychiatry, and allied disciplines	Anderson, Deborah K; Liang, Jessie W; Lord, Catherine	May 2014	Not Determined
23488613	Create Study	Commentary: Advancing measurement of ASD severity and social competence: a reply to Constantino and Frazier (2013).	Journal of child psychology and psychiatry, and allied disciplines	Hus, Vanessa; Bishop, Somer; Gotham, Katherine; Huerta, Marisela; Lord, Catherine	June 1, 2013	Not Determined
23258569	Create Study	Exploring the relationship between anxiety and insistence on sameness in autism spectrum disorders.	Autism research : official journal of the International Society for Autism Research	Gotham, Katherine; Bishop, Somer L; Hus, Vanessa; Huerta, Marisela; Lund, Sabata; Buja, Andreas; Krieger, Abba; Lord, Catherine	February 2013	Not Determined
23223363	Create Study	Attachment in young children with autism spectrum disorders: an examination of separation and reunion behaviors with both mothers and fathers.	Autism : the international journal of research and practice	Grzadzinski RL, Luyster R, Spencer AG, Lord C	February 2014	Not Determined
23153932	Create Study	Diagnosing autism in neurobiological research studies.	Behavioural brain research	Jones, Rebecca M; Lord, Catherine	August 15, 2013	Not Determined
23143131	Create Study	Standardizing ADOS domain scores: separating severity of social affect and restricted and repetitive behaviors.	Journal of autism and developmental disorders	Hus, Vanessa; Gotham, Katherine; Lord, Catherine	October 2014	Not Determined
23065116	Create Study	Subcategories of restricted and repetitive behaviors in children with autism spectrum disorders.	Journal of autism and developmental disorders	Bishop, Somer L; Hus, Vanessa; Duncan, Amie; Huerta, Marisela; Gotham, Katherine; Pickles, Andrew; Kreiger, Abba; Buja, Andreas; Lund, Sabata; Lord, Catherine	June 2013	Not Determined
23032385	Create Study	Application of DSM-5 criteria for autism spectrum disorder to three samples of children with DSM-IV diagnoses of pervasive developmental disorders.	The American journal of psychiatry	Huerta, Marisela; Bishop, Somer L; Duncan, Amie; Hus, Vanessa; Lord, Catherine	October 2012	Not Determined
22823182	Create Study	Factors influencing scores on the social responsiveness scale.	Journal of child psychology and psychiatry, and allied disciplines	Hus, Vanessa; Bishop, Somer; Gotham, Katherine; Huerta, Marisela; Lord, Catherine	February 2013	Not Determined
22729382	Create Study	Effects of child characteristics on the Autism Diagnostic Interview-Revised: implications for use of scores as a measure of ASD severity.	Journal of autism and developmental disorders	Hus V, Lord C	February 2013	Not Determined
22486486	Create Study	Annual research review: re-thinking the classification of autism spectrum disorders.	Journal of child psychology and psychiatry, and allied disciplines	Lord, Catherine; Jones, Rebecca M	May 2012	Not Determined
22065253	Create Study	A multisite study of the clinical diagnosis of different autism spectrum disorders.	Archives of general psychiatry	Lord, Catherine; Petkova, Eva; Hus, Vanessa; Gan, Weijin; Lu, Feihan; Martin, Donna M; Ousley, Opal; Guy, Lisa; Bernier, Raphael; Gerdts, Jennifer; Algermissen, Molly; Whitaker, Agnes; Sutcliffe, James S; Warren, Zachary; Klin, Ami; Saulnier, Celine; Hanson, Ellen; Hundley, Rachel; Piggot, Judith; Fombonne, Eric; Steiman, Mandy; Miles, Judith; Kanne, Stephen M; Goin-Kochel, Robin P; Peters, Sarika U; Cook, Edwin H; Guter, Stephen; Tjernagel, Jennifer; Green-Snyder, Lee Anne; Bishop, Somer; Esler, Amy; Gotham, Katherine; Luyster, Rhiannon; Miller, Fiona; Olson, Jennifer; Richler, Jennifer; Risi, Susan	March 2012	Not Determined
21905806	Create Study	Changes in maladaptive behaviors from midchildhood to young adulthood in autism spectrum disorder.	American journal on intellectual and developmental disabilities	Anderson, Deborah K; Maye, Melissa P; Lord, Catherine	September 2011	Not Determined
21905802	Create Study	Convergent validity of the Mullen Scales of Early Learning and the differential ability scales in children with autism spectrum disorders.	American journal on intellectual and developmental disabilities	Bishop, Somer L; Guthrie, Whitney; Coffing, Mia; Lord, Catherine	September 2011	Not Determined
21610184	Create Study	Motor skills of toddlers with autism spectrum disorders.	Autism : the international journal of research and practice	Lloyd, Meghann; MacDonald, Megan; Lord, Catherine	March 2013	Not Determined
21410473	Create Study	Telescoping of caregiver report on the Autism Diagnostic Interview--Revised.	Journal of child psychology and psychiatry, and allied disciplines	Hus V, Taylor A, Lord C	July 2011	Not Determined
21078305	Create Study	Is schizophrenia on the autism spectrum?	Brain research	King, Bryan H; Lord, Catherine	March 22, 2011	Not Determined
21058793	Create Study	Autism: from research to practice.	The American psychologist	Lord, Catherine E	November 2010	Not Determined
20589716	Create Study	Restricted and repetitive behaviors in toddlers and preschoolers with autism spectrum disorders based on the Autism Diagnostic Observation Schedule (ADOS).	Autism research : official journal of the International Society for Autism Research	Kim SH, Lord C	August 2010	Not Determined
20559336	Create Study	Behavioural phenotyping assays for mouse models of autism.	Nature reviews. Neuroscience	Silverman, Jill L; Yang, Mu; Lord, Catherine; Crawley, Jacqueline N	July 2010	Not Determined
20195735	Create Study	Early language patterns of toddlers on the autism spectrum compared to toddlers with developmental delay.	Journal of autism and developmental disorders	Ellis Weismer, Susan; Lord, Catherine; Esler, Amy	October 2010	Not Determined
19127655	Create Study	Evidence for latent classes of IQ in young children with autism spectrum disorder.	American journal of mental retardation : AJMR	Munson, Jeffrey; Dawson, Geraldine; Sterling, Lindsey; Beauchaine, Theodore; Zhou, Andrew; Elizabeth, Koehler; Lord, Catherine; Rogers, Sally; Sigman, Marian; Estes, Annette; Abbott, Robert	November 2008	Not Determined

helpcenter.collection.publications-tab

Collection - Publications

The number of Publications is displayed in parentheses next to the tab name. Clicking on any of the Publication Titles will open the Publication in a new internet browsing tab.

Collection Owners, Program Officers, and users with Submission or Administrative Privileges for the Collection may mark a publication as either Relevant or Not Relevant in the Status column.

Frequently Asked Questions

How can I determine if a publication is relevant?

Publications are considered relevant to a collection when the data shared is directly related to the project or collection.
Where does the NDA get the publications?

PubMed, an online library containing journals, articles, and medical research. Sponsored by NiH and National Library of Medicine (NLM).

Glossary

Create Study

A link to the Create an NDA Study page that can be clicked to start creating an NDA Study with information such as the title, journal and authors automatically populated.
Not Determined Publication

Indicates that the publication has not yet been reviewed and/or marked as Relevant or Not Relevant so it has not been determined whether an NDA Study is expected.
Not Relevant Publication

A publication that is not based on data related to the aims of the grant/project associated with the Collection or not based on any data such as a review article and, therefore, an NDA Study is not expected to be created.
PubMed

PubMed provides citation information for biomedical and life sciences publications and is managed by the U.S. National Institutes of Health's National Library of Medicine.
PubMed ID

The PUBMed ID is the unique ID number for the publication as recorded in the PubMed database.
Relevant Publication

A publication that is based on data related to the aims of the grant/project associated with the Collection and, therefore, an NDA Study is expected to be created.

Contact NDA Help Desk

Data Expected List: Mandatory Data Structures

These data structures are mandatory for your NDA Collection. Please update the Targeted Enrollment number to accurately represent the number of subjects you expect to submit for the entire study.

For NIMH HIV-related research that involves human research participants: Select the dictionary or dictionaries most appropriate for your research. If your research does not require all three data dictionaries, just ignore the ones you do not need. There is no need to delete extra data dictionaries from your NDA Collection. You can adjust the Targeted Enrollment column in the Data Expected tab to “0” for those unnecessary data dictionaries. At least one of the three data dictionaries must have a non-zero value.

Data Expected	Targeted Enrollment	Initial Submission	Subjects Submitted	Initial Share	Subjects Shared	Status
Research Subject and Pedigree	129	07/15/2012	0	11/15/2012	0	Approved

To create your project's Data Expected list, use the "+New Data Expected" to add or request existing structures and to request new Data Structures that are not in the NDA Data Dictionary.

If the Structure you need already exists, locate it and specify your dates and enrollment when adding it to your Data Expected list. If you require changes to the Structure you need, select the indicator stating "No, it requires changes to meet research needs," and upload a file containing your requested changes.

If the structure you need is not yet defined in the Data Dictionary, you can select "Upload Definition" and attach the necessary materials to request its creation.

When selecting the expected dates for your data, make sure to follow the standard Data Sharing Regimen and choose dates within the date ranges that correspond to your project start and end dates.

Please visit the Completing Your Data Expected Tutorial for more information.

Data Expected List: Data Structures per Research Aims

These data structures are specific to your research aims and should list all data structures in which data will be collected and submitted for this NDA Collection. Please update the Targeted Enrollment number to accurately represent the number of subjects you expect to submit for the entire study.

Data Expected	Targeted Enrollment	Initial Submission	Subjects Submitted	Initial Share	Subjects Shared	Status
Mullen Scales of Early Learning	129	05/31/2014	42	09/30/2014	42	Approved
ABC Community	129	07/15/2012	56	11/15/2012	56	Approved
ADOS	129	05/31/2014	62	09/30/2014	62	Approved
ADI-R	129	05/31/2014	59	09/30/2014	59	Approved
Social Communication Questionnaire (SCQ)	129	05/31/2014	57	09/30/2014	57	Approved
Child Behavior Checklist (CBCL)	129	05/31/2014	57	09/30/2014	57	Approved
Pubertal Development Scale (PDS)	129	05/31/2014	15	09/30/2014	15	Approved
DAS-II: Differential Ability Scales	129	05/31/2014	45	09/30/2014	45	Approved
Peabody Picture Vocabulary Test, Fourth Edition	129	05/31/2014	1	09/30/2014	1	Approved
Repetitive Behavior Scale - Revised (RBS-R)	129	07/15/2012	55	11/15/2012	55	Approved
TEACCH Transition Assessment Profile, 2nd Ed. (TTAP)	129	05/31/2014	21	09/30/2014	21	Approved
Wide Range Achievement Test	129	05/31/2014	36	09/30/2014	36	Approved
Vineland (Parent and Caregiver)	129	05/31/2014	61	09/30/2014	61	Approved

Structure not yet defined

No Status history for this Data Expected has been recorded yet

helpcenter.collection.data-expected-tab

Collection - Data Expected

The Data Expected tab displays the list of all data that NDA expects to receive in association with the Collection as defined by the contributing researcher, as well as the dates for the expected initial upload of the data, and when it is first expected to be shared, or with the research community. Above the primary table of Data Expected, any publications determined to be relevant to the data within the Collection are also displayed - members of the contributing research group can use these to define NDA Studies, connecting those papers to underlying data in NDA.

The tab is used both as a reference for those accessing shared data, providing information on what is expected and when it will be shared, and as the primary tracking mechanism for contributing projects. It is used by both contributing primary researchers, secondary researchers, and NIH Program and Grants Management staff.

Researchers who are starting their project need to update their Data Expected list to include all the Data Structures they are collecting under their grant and set their initial submission and sharing schedule according to the NDA Data Sharing Regimen.

To add existing Data Structures from the Data Dictionary, to request new Data Structure that are not in the Dictionary, or to request changes to existing Data Structures, click "+New Data Expected".

For step-by-step instructions on how to add existing Data Structures, request changes to an existing Structure, or request a new Data Structure, please visit the Completing Your Data Expected Tutorial.

If you are a contributing researcher creating this list for the first time, or making changes to the list as your project progress, please note the following:

Although items you add to the list and changes you make are displayed, they are not committed to the system until you Save the entire page using the "Save" button at the bottom of your screen. Please Save after every change to ensure none of your work is lost.
If you attempt to add a new structure, the title you provide must be unique - if another structure exists with the same name your change will fail.
Adding a new structure to this list is the only way to request the creation of a new Data Dictionary definition.

Frequently Asked Questions

What is an NDA Data Structure?

An NDA Data Structure is comprised of multiple Data Elements to make up an electronic definition of an assessment, measure, questionnaire, etc will have a corresponding Data Structure.
What is the NDA Data Dictionary?

The NDA Data Dictionary is comprised of electronic definitions known as Data Structures.

Glossary

Analyzed Data

Data specific to the primary aims of the research being conducted (e.g. outcome measures, other dependent variables, observations, laboratory results, analyzed images, volumetric data, etc.) including processed images.
Data Item

Items listed on the Data Expected list in the Collection which may be an individual and discrete Data Structure, Data Structure Category, or Data Structure Group.
Data Structure

A defined organization and group of Data Elements to represent an electronic definition of a measure, assessment, questionnaire, or collection of data points. Data structures that have been defined in the NDA Data Dictionary are available at https://nda.nih.gov/general-query.html?q=query=data-structure
Data Structure Category

An NDA term describing the affiliation of a Data Structure to a Category, which may be disease/disorder or diagnosis related (Depression, ADHD, Psychosis), specific to data type (MRI, eye tracking, omics), or type of data (physical exam, IQ).
Data Structure Group

A Data Item listed on the Data Expected tab of a Collection that indicates a group of Data Structures (e.g., ADOS or SCID) for which data may be submitted instead of a specific Data Structure identified by version, module, edition, etc. For example, the ADOS Data Structure Category includes every ADOS Data Structure such as ADOS Module 1, ADOS Module 2, ADOS Module 1 - 2nd Edition, etc. The SCID Data Structure Group includes every SCID Data Structure such as SCID Mania, SCID V Mania, SCID PTSD, SCID-V Diagnosis, and more.
Evaluated Data

A new Data Structure category, Evaluated Data is analyzed data resulting from the use of computational pipelines in the Cloud and can be uploaded directly back to a miNDAR database. Evaluated Data is expected to be listed as a Data Item in the Collection's Data Expected Tab.
Imaging Data

Imaging+ is an NDA term which encompasses all imaging related data including, but not limited to, images (DTI, MRI, PET, Structural, Spectroscopy, etc.) as well as neurosignal data (EEG, fMRI, MEG, EGG, eye tracking, etc.) and Evaluated Data.
Initial Share Date

Initial Submission and Initial Share dates should be populated according to the NDA Data Sharing Terms and Conditions. Any modifications to these will go through the approval processes outlined above. Data will be shared with authorized users upon publication (via an NDA Study) or 1-2 years after the grant end date specified on the first Notice of Award, as defined in the applicable Data Sharing Terms and Conditions.
Initial Submission Date

Initial Submission and Initial Share dates should be populated according to these NDA Data Sharing Terms and Conditions. Any modifications to these will go through the approval processes outlined above. Data for all subjects is not expected on the Initial Submission Date and modifications may be made as necessary based on the project's conduct.
Research Subject and Pedigree

An NDA created Data Structure used to convey basic information about the subject such as demographics, pedigree (links family GUIDs), diagnosis/phenotype, and sample location that are critical to allow for easier querying of shared data.
Submission Cycle

The NDA has two Submission Cycles per year - January 15 and July 15.
Submission Exemption

An interface to notify NDA that data may not be submitted during the upcoming/current submission cycle.

Contact NDA Help Desk

Collection Owners and those with Collection Administrator permission, may edit a collection. The following is currently available for Edit on this page:

Associated Studies

Studies that have been defined using data from a Collection are important criteria to determine the value of data shared. The number of subjects column displays the counts from this Collection that are included in a Study, out of the total number of subjects in that study. The Data Use column represents whether or not the study is a primary analysis of the data or a secondary analysis. State indicates whether the study is private or shared with the research community.

Study NameFilter by Study Name	AbstractFilter by Abstract	Collection/Study SubjectsFilter by Collection/Study Subjects	Data UsageFilter by Data Usage	StateFilter by State
Examining the validity of the use of ratio IQs in psychological assessments	IQ tests are amongst the most used psychological assessments, both in research and clinical settings. For participants who cannot complete IQ tests normed for their age, ratio IQ scores (RIQ) are routinely computed and used as a proxy of IQ, especially in large research databases to avoid missing data points. However, because it has never been scientifically validated, this practice is questionable. In the era of big data, it is important to examine the validity of this widely used practice. In this paper, we use the case of autism to examine the differences between standard full-scale IQ (FSIQ) and RIQ. Data was extracted from four databases in which ages, FSIQ scores and subtests raw scores were available for autistic participants between 2 and 17 years old. The IQ tests included were the MSEL (N=12033), DAS-II early years (N=1270), DAS-II school age (N=2848), WISC-IV (N=471) and WISC-V (N=129). RIQs were computed for each participant as well as the discrepancy (DSC) between RIQ and FSIQ. We performed two linear regressions to respectively assess the effect of FSIQ and of age on the DSC for each IQ test, followed by additional analyses comparing age subgroups as well as FSIQ subgroups on DSC. Participants at the extremes of the FSIQ distribution tended to have a greater DSC than participants with average FSIQ. Furthermore, age significantly predicted the DSC, with RIQ superior to FSIQ for younger participants while the opposite was found for older participants. These results question the validity of this widely used alternative scoring method, especially for individuals at the extremes of the normal distribution, with whom RIQs are most often employed.	60/17423	Secondary Analysis	Shared
Examining Diagnostic Trends and Gender Differences in the ADOS-II	Approximately 3–4 boys for every girl meet the clinical criteria for autism in studies of community diagnostic patterns and studies of autism using samples of convenience. However, girls with autism have been hypothesized to be underdiagnosed, possibly because they may present with differing symptom profiles as compared to boys. This secondary data analysis used the National Database of Autism Research (NDAR) to examine how gender and symptom profiles are associated with one another in a gold standard assessment of autism symptoms, the Autism Diagnostic Observation Schedule II (ADOS-II; Lord, C., Luyster, R., Guthrie, W., & Pickles A. (2012a). Patterns of developmental trajectories in toddlers with autism spectrum disorder. Journal of Consulting and Clinical Psychology, 80(3):477–489. https://doi.org/10.1037/a0027214. Epub 2012 Apr 16. PMID: 22506796, PMCID: PMC3365612). ADOS-II scores from 6183 children ages 6–14 years from 78 different studies in the NDAR indicated that gender was a significant predictor of total algorithm, restrictive and repetitive behavioral, and social communicative difficulties composite severity scores. These findings suggest that gender differences in ADOS scores are common in many samples and may reflect on current diagnostic practices.	5/5615	Secondary Analysis	Shared
Gender Differences: Confirmatory Factor Analysis of the ADOS-II	Purpose Recent research has suggested that autism may present differently in girls compared to boys, encouraging the exploration of a sex-differential diagnostic criteria. Gender differences in diagnostic assessments have been shown on the ADOS-II, such that, on average, females score significantly lower than males on all scales and are less likely to show atypicality on most items related to social communicative difficulties. Yet, gender differences in the latent structure of instruments like the ADOS-II have not been examined systematically. Methods As such, this secondary data analysis examined 4,100 youth diagnosed with autism (Mage = 9.9, 813 female & 3287 male) examined item response trends by gender on the ADOS-II Module 3. Results Multi-Group Confirmatory Factor Analysis results show that the factor loadings of four ADOS-II items differ across the genders. One SCD item and one RRB item are strongly related to the latent factor in the female group, while two RRB items have larger factor loadings in the male group. Conclusion The assumption of an identical latent factor structure for the ADOS-II Module 3 for males and females might not be justifiable. Possible diagnostic implications are discussed.	5/5615	Secondary Analysis	Shared
Investigating autism etiology and heterogeneity by decision tree algorithm	Autism spectrum disorder (ASD) is a neurodevelopmental disorder that causes deficits in cognition, communication and social skills. ASD, however, is a highly heterogeneous disorder. This heterogeneity has made identifying the etiology of ASD a particularly difficult challenge, as patients exhibit a wide spectrum of symptoms without any unifying genetic or environmental factors to account for the disorder. For better understanding of ASD, it is paramount to identify potential genetic and environmental risk factors that are comorbid with it. Identifying such factors is of great importance to determine potential causes for the disorder, and understand its heterogeneity. Existing large-scale datasets offer an opportunity for computer scientists to undertake this task by utilizing machine learning to reliably and efficiently obtain insight about potential ASD risk factors, which would in turn assist in guiding research in the field. In this study, decision tree algorithms were utilized to analyze related factors in datasets obtained from the National Database for Autism Research (NDAR) consisting of nearly 3000 individuals. We were able to identify 15 medical conditions that were highly associated with ASD diagnoses in patients; furthermore, we extended our analysis to the family medical history of patients and we report six potentially hereditary medical conditions associated with ASD. Associations reported had a 90% accuracy. Meanwhile, gender comparisons highlighted conditions that were unique to each gender and others that overlapped. Those findings were validated by the academic literature, thus opening the way for new directions for the use of decision tree algorithms to further understand the etiology of autism.	5/3382	Secondary Analysis	Shared

* Data not on individual level

helpcenter.collection.associated-studies-tab

Collection - Associated Studies

Clicking on the Study Title will open the study details in a new internet browser tab. The Abstract is available for viewing, providing the background explanation of the study, as provided by the Collection Owner.

Primary v. Secondary Analysis: The Data Usage column will have one of these two choices. An associated study that is listed as being used for Primary Analysis indicates at least some and potentially all of the data used was originally collected by the creator of the NDA Study. Secondary Analysis indicates the Study owner was not involved in the collection of data, and may be used as supporting data.

Private v. Shared State: Studies that remain private indicate the associated study is only available to users who are able to access the collection. A shared study is accessible to the general public.

Frequently Asked Questions

How do I associate a study to my collection?

Studies are associated to the Collection automatically when the data is defined in the Study.

Glossary

Associated Studies Tab

A tab in a Collection that lists the NDA Studies that have been created using data from that Collection including both Primary and Secondary Analysis NDA Studies.

Contact NDA Help Desk

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