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Filter Cart

Viewable at the top right of NDA pages, the Filter Cart is a temporary holder for filters and data they select. Filters are added to the Workspace first, before being submitted to The Filter Cart. Data selected by filters in the Filter Cart can be added to a Data Package or an NDA Study from the Data Packaging Page, by clicking the 'Create Data Package / Add Data to Study' button.

The filter cart supports combining multiple filters together, and depending on filter type will use "AND" or "OR"  when combining filters.

Multiple selections from the same filter type will result in those selections being applied with an ‘OR’ condition. For example, if you add an NDA Collection Filter with selections for both collections 2112 and 2563 to an empty Workspace, the subjects from NDA Collection 2112 ‘OR’ NDA Collection 2563 will be added to your Workspace even if a subject is in both NDA Collections. You can then add other NDA Collections to your Workspace which further extends the ‘OR’ condition.

If a different filter type is added to your Workspace, or a filter has already been submitted to the Filter Cart, the operation then performs a logical ‘AND’ operation. This means that given the subjects returned from the first filter, only those subjects that matched the first filter are returned by the second filter (i.e., subjects that satisfied both filters). Note that only the subjects specific to your filter will be added to your Filter Cart and only on data shared with the research community. Other data for those same subjects may exist (i.e., within another NDA Collection, associated with a data structure that was not requested in the query, etc.). So, users should select ‘Find all Subjects Data’ to identify all data for those specific subjects. 

Additional Tips:

  • You may query the data without an account, but to gain access you will need to create an NDA user account and apply for access.  Most data access requires that you or your lab are sponsored by an NIH recognized institution with Federal Wide Assurance (FWA).  Without access, you will not be able to obtain individual-level data. 

    Once you have selected data of interest you can:
  • Create a data package - This allows you to specify format for access/download
  • Assign to Study Cohort - Associate the data to an NDA Study allowing for a DOI to be generated and the data to be linked directly to a finding, publication, or data release. 
  • Find All Subject Data - Depending on filter types being used, not all data associated with a subject will be selected.  Data may be restricted by data structure, NDA Collection, or outcome variables (e.g., NDA Study). ‘Find All Data’ expands the fliter criteria by replacing all filters in your Filter Cart with a single Query by GUID filter for all subjects selected by those filters.

    Please Note:
  • When running a query, it may take a moment to populate the Filter Cart. Queries happen in the background so you can define other queries during this time. 
  • When you add your first filter, all data associated with your query will be added to the Filter Cart (e.g., a Concept, an NDA Collection, a Data Structure/Element, etc.). As you add additional filters, they will also display in the Filter Cart. Only the name of filter will be shown in the Filter Cart, not the underlying structures. 
  • Information about the contents of the Filter Cart can be seen by clicking "Edit”.
  • Once your results appear in the Filter Cart, you can create a data package or assign subjects to a study by selecting the 'Package/Assign to Study' option. You can also 'Edit' or 'Clear' filters.

Frequently Asked Questions

  • The Filter Cart currently employs basic AND/OR Boolean logic. A single filter may contain multiple selections for that filter type, e.g., a single NDA Study filter might contain NDA Study 1 and NDA Study 2. A subject that is in EITHER 1 OR 2 will be returned.  Adding multiple filters to the cart, regardless of type, will AND the result of each filter.  If NDA Study 1 and NDA Study 2 are added as individual filters, data for a subject will only be selected if the subject is included in  BOTH 1 AND 2.

  • Viewable at the top right of NDA pages, the Filter Cart is a temporary holder of data identified by the user, through querying or browsing, as being of some potential interest. The Filter Cart is where you send the data from your Workspace after it has been filtered.

  • After filters are added to the Filter Cart, users have options to ‘Create a Package’ for download, ‘Associate to Study Cohort’, or ‘Find All Subject Data’. Selecting ‘Find All Subject Data’ identifies and pulls all data for the subjects into the Filter Cart. Choosing ‘Create a Package’ allows users to package and name their query information for download. Choosing ‘Associate to Study Cohort’ gives users the opportunity to choose the Study Cohort they wish to associate this data.


  • Once your filter cart contains the subjects of interest, select Create Data Package/Assign to Data Study which will provide options for accessing item level data and/or assigning to a study.  

  • Once queries have been added to your workspace, the next step is to Submit the Filters in the workspace to the Filter Cart.  This process runs the queries selected, saving the results within a filter cart attached to your account.  

  • The Workspace within the General Query Tool is a holding area where you can review your pending filters prior to adding them to Filter Cart. Therefore, the first step in accessing data is to select one or more items and move it into the Workspace. 


Reset Password

NDA provides a single access to de-identified autism research data. For permission to download data, you will need an NDA account with approved access to NDA or a connected repository (AGRE, IAN, or the ATP). For NDA access, you need to be a research investigator sponsored by an NIH recognized institution with federal wide assurance. See Request Access for more information.

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Ambiguous Situations Questionnaire

488 Shared Subjects

Clinical Assessments
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Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project pid
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0 :: 1260 Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY Required field
sex String 20 Required Sex of the subject M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported gender
Query visit String 60 Recommended Visit name timept
Query visday Integer Recommended Number of days from study baseline to date of visit dayasq
Query asq1 Integer Recommended At school one day, you/your childnotices that a favorite book of yours/his or hers is missing. Later you/he or she notices that a child in your/his/her class has a similar book in their bag. What do you think you/your child would feel is most likely to have happened to the book? 1::4 1 = That child has stolen the book and put it in his/her bag.2 = Someone who doesn't like you has taken your book so that you will be in trouble.3 = You left your book at home.4 = A friend borrowed the book thinking you wouldn't mind
Query asq2 Integer Recommended You/Your see the school principal walking around the playground and he/she has been asking other children where you are. Why do you think the principal is most likely looking for you?Your child sees the school principal walking around the playground asking other children where your child is. What do you think your child feels is the reason the principal is looking for him or her? 1::4 1 = The principal has a message for you.2 = The principal thinks you have done something wrong and is angry.3 = The principal wants to tell you that he/she has noticed you are working harder and is pleased.4 = One of the other children has told the teachers something bad about you.1 = The principal has a message for your child.2 = The principal thinks your child has done something wrong and is angry.3 = The principal wants to tell your child that they have noticed he or she is working harder and is pleased.4 =One of the other children has told the teachers something bad about your child.
Query asq3 Integer Recommended You/Your child arranges to have a party at 4:00 pm and by 4:30 pm no one has arrived. What do you think you/your child would feel is most likely to have happened? 1::4 1 = Your friends are angry with you and don't want to come.2 = You must have put 4:30 pm on the invitation.3 = Your friends are late because the traffic is very heavy.4 = Your friends don't want to come because they think it will be really boring
Query asq4 Integer Recommended You/Your child is showing his or her school project in front of the class and two students in the back are giggling. What would you/your child think is the reason that they are giggling? 1::4 1 = They think the project is really dumb.2 = They are being silly and tickling each other.3 = Another kid is making funny faces at them.4 = There is a big stain on your clothes and they are laughing at you
Query asq5 Integer Recommended You/Your child is sleeping over at a friend's house and his / her parents seem to be really annoyed and cranky all the time. What would you/your child think is the most likely reason that the friend's parents are annoyed and cranky? 1::4 1 = They had a little argument and are upset with each other.2 = They really don't like you.3 = They think you have done something wrong.4 = They had a party last night and they are tired and don't feel well
Query asq6 Integer Recommended You/Your child sees a group of students from another class playing a great game. You/Your child walks over and wants to join in but hears the other kids laughing. Which of the following would your child think is most likely to happen next? 1::4 1 = They are going to start looking at you and telling secrets about you.2 = They will ask you to join in.3 = One of them is likely to rush up and push you away.4 = They are going to notice you and smile
Query respondent String 20 Recommended Respondent
Query respondent_other_specify String 50 Recommended Respondent: Other (specify)
respond_detail_oth_spec String 255 Recommended Respondent details
Query asqr1 Float Recommended ASQ Item 1 score ASQ1 recode to dichotomous score if asq1 = 1 then asqr1 = 1;else if asq1 = 2 then asqr1 = 1;else if asq1 = 3 then asqr1 = 0;else if asq1 = 4 then asqr1 = 0;else asqr1 = .;
Query asqr2 Float Recommended ASQ Item 2 score ASQ2 recode to dichotomous score if asq2 = 1 then asqr2 = 0;else if asq2 = 2 then asqr2 = 1;else if asq2 = 3 then asqr2 = 0;else if asq2 = 4 then asqr2 = 1;else asqr2 = .;
Query asqr3 Float Recommended ASQ Item 3 score ASQ3 recode to dichotomous score if asq3 = 1 then asqr3 = 1;else if asq3 = 2 then asqr3 = 0;else if asq3 = 3 then asqr3 = 0;else if asq3 = 4 then asqr3 = 1;else asqr3 = .;
Query asqr4 Float Recommended ASQ Item 4 score ASQ4 recode to dichotomous score if asq4 = 1 then asqr4 = 1;else if asq4 = 2 then asqr4 = 0;else if asq4 = 3 then asqr4 = 0;else if asq4 = 4 then asqr4 = 1;else asqr4 = .;
Query asqr5 Float Recommended ASQ Item 5 score ASQ5 recode to dichotomous score if asq5 = 1 then asqr5 = 0;else if asq5 = 2 then asqr5 = 1;else if asq5 = 3 then asqr5 = 1;else if asq5 = 4 then asqr5 = 0;else asqr5 = .;
Query asqr6 Float Recommended ASQ Item 6 score ASQ6 recode to dichotomous score if asq6 = 1 then asqr6 = 1;else if asq6 = 2 then asqr6 = 0;else if asq6 = 3 then asqr6 = 1;else if asq6 = 4 then asqr6 = 0;else asqr6 = .;
Query asqtot Float Recommended ASQ Total Dichotomous score Total ASQTOT = sum(asqr1, asqr2, asqr3, asqr4, asqr5, asqr6);
Query imputation Integer Recommended Indicator noting imputed data set number 1::20
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

  • Element Name: This is the standard element name
  • Data Type: Which type of data this element is, e.g. String, Float, File location.
  • Size: If applicable, the character limit of this element
  • Required: This column displays whether the element is Required for valid submissions, Recommended for valid submissions, Conditional on other elements, or Optional
  • Description: A basic description
  • Value Range: Which values can appear validly in this element (case sensitive for strings)
  • Notes: Expanded description or notes on coding of values
  • Aliases: A list of currently supported Aliases (alternate element names)
  • For valid elements with shared data, on the far left is a Filter button you can use to view a summary of shared data for that element and apply a query filter to your Cart based on selected value ranges

At the top of this page you can also:

  • Use the search bar to filter the elements displayed. This will not filter on the Size of Required columns
  • Download a copy of this definition in CSV format
  • Download a blank CSV submission template prepopulated with the correct structure header rows ready to fill with subject records and upload

Please email the The NDA Help Desk with any questions.