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Frequently Asked Questions

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Filter Cart

The Filter Cart provides a powerful way to query and access data for which you may be interested.  

A few points related to the filter cart are important to understand with the NDA Query/Filter implementation: 

First, the filter cart is populated asyncronously.  So, when you run a query, it may take a moment to populate but this will happen in the background so you can define other queries during this time.  

When you are adding your first filter, all data associated with your query will be added to the filter cart (whether it be a collection, a concept, a study, a data structure/elment or subjects). Not all data structures or collections will necessarily be displayed.  For example, if you select the NDA imaging structure image03, and further restrict that query to scan_type fMRI, only fMRI images will appear and only the image03 structure will be shown.  To see other data structures, select "Find All Subject Data" which will query all data for those subjects. When a secord or third filter is applied, an AND condition is used.  A subject must exist in all filters.  If the subject does not appear in any one filter, that subjects data will not be included in your filter cart. If that happens, clear your filter cart, and start over.  

It is best to package more data than you need and access those data using other tools, independent of the NDA (e.g. miNDAR snapshot), to limit the data selected.  If you have any questions on data access, are interested in using avaialble web services, or need help accessing data, please contact us for assistance.  

Frequently Asked Questions

Glossary

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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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Data Structures with shared data
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Convergence Insufficiency Screening

0 Shared Subjects

N/A
Clinical Assessments
Enrollment
12/02/2019
cis01
12/04/2019
View Change History
01
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 subnum
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY Required field sdate
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.
sex String 20 Required Sex of the subject M;F M = Male; F = Female gender
q1_eyes_tired Integer Recommended Do your eyes feel tired when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q2_uncomfortable Integer Recommended Do your eyes feel uncomfortable when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q3_headaches Integer Recommended Do you have headaches when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q4_sleepy Integer Recommended Do you feel sleepy when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q5_concentration Integer Recommended Do you lose concentration when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q6_remember Integer Recommended Do you have trouble remembering what you have read? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q7_double_vision Integer Recommended Do you have double vision when reading or doing close work 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q8_words_jump Integer Recommended Do you see the words move, jump, swim or appear to float on the page when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q9_read_slowly Integer Recommended Do you feel like you read slowly? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q10_eyes_hurt Integer Recommended Do your eyes ever hurt when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q11_eyes_sore Integer Recommended Do your eyes ever feel sore when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q12_pulling Integer Recommended Do you feel a "pulling" feeling around your eyes when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q13_blurring Integer Recommended Do you notice the words blurring or coming in and out of focus when reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q14_lose_place Integer Recommended Do you lose your place while reading or doing close work? 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
q15_reread Integer Recommended Do you have to re-read the same line of words when reading 0::4 0= Never; 1= Infrequently; 2= Sometimes; 3= Fairly Often; 4= Always
total_num_x0 Integer Recommended Total number coded 0
total_num_x1 Integer Recommended Total number coded 1
total_num_x2 Integer Recommended Total number coded 2
total_num_x3 Integer Recommended Total number coded 3
total_num_x4 Integer Recommended Total number coded 4
total_column_x0 Integer Recommended Total number coded 0 multiplied by 0
total_column_x1 Integer Recommended Total number coded 1 multiplied by 1
total_column_x2 Integer Recommended Total number coded 2 multiplied by 2
total_column_x3 Integer Recommended Total number coded 3 multiplied by 3
total_column_x4 Integer Recommended Total number coded 4 multiplied by 4
cis_total_score Integer Recommended CIS Total Score (sum of all column scores)
comments_misc String 4,000 Recommended Miscellaneous comments on study, interview, methodology relevant to this form data
session Integer Recommended Session
validity String 13 Recommended Valdity rating Yes;No;Questionnable
site String 101 Recommended Site Study Site
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.