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NDAR provides a single access to de-identified autism research data. For permission to download data, you will need an NDAR account with approved access to NDAR or a connected repository (AGRE, IAN, or the ATP). For NDAR 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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The filters you have selected from various query interfaces will be stored here, in the 'Filter Cart'. The database will be queried using filters added to your 'Filter Cart', when multiple filters are defined, each will be executed using 'AND' logic, so with each filter that is applied the result set gets smaller.

From the 'Filter Cart' you can inspect each of the filters that have been defined, and you also have the option to remove filters. The 'Filter Cart' itself will display the number of filters applied along with the number of subjects that are identified by the combination of those filters. For example a GUID filter with two subjects, followed by a GUID filter for just one of those subjects would return only data for the subject that is in both GUID filters.

If you have a question about the filter cart, or underlying filters please contact the help desk at The NDA Help Desk

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Behavioral Treatment Adherence



Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*
src_subject_idString20RequiredSubject ID how it's defined in lab/projectbid
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired field
interview_ageIntegerRequiredAge in months at the time of the interview/test/sampling/imaging.0 :: 1260Age 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.
genderString20RequiredSex of the subjectM;FM = Male; F = Female
visitString50RecommendedVisit nameCharacter description of each type of visit
fseqnoIntegerRecommendedSequence Number0::999The FSEQNO variable in the ADJ form has a special interpretation compared to other forms. For example, ADJ FSEQNO of '1' can be thought of as being '001', FSEQNO of '2' can be thought of as being '002', and FSEQNO of '3' can be thought of as being '003'. The first digit of FSEQNO relates to the corresponding ENF sequence number at that visit and the third digit relates to the specific adjudicator who completed the adjudication form.
version_formString100RecommendedForm used/assessment namevers
btaa2IntegerRecommendedDid the patient participate in the behavioral treatment session at this visit?0;1;9990=No; 1=Yes; 999=Legitmately skippedbtaa1, btaa8
btaa3IntegerRecommendedLength of session (minutes)999=Legitmately skippedbtaa2a, btaa9, lbta
btaa4IntegerRecommendedDid you discuss/review this weeks lesson0;1; 9990=No; 1=Yes; 999=Legitmately skippedbtaa3a
btaa5IntegerRecommendedDid the patient finish the homework from the previous week? (record one) (*This question does not apply to Visit 3)0;1;2; 9990=No; 1=Yes, partially; 2=Yes, completely; 999=Legitmately skippedbtaa4a, hwbta
btaa7IntegerRecommendedDid the patient participate in the interim telephone call?0;1; 9990=No; 1=Yes; 999=Legitmately skippedbtaa6a
btaa10IntegerRecommendedDid you discuss/review this months lesson?0;1; 9990=No; 1=Yes; 999=Legitmately skipped
btaa11IntegerRecommendedDid the patient finish the homework from the past month? (check one)0;1;2; 9990=No; 1=Yes, partially; 2=Yes, completely; 999=Legitmately skipped
gbta1IntegerRecommendedConsidering the patient's participation in the intervention throughout the time she/he was enrolled in the study, how adherent was the patient to the Behavioral Treatment Intervention?1::51: Not at all adherent; 2: Slightly adherent; 3: Reasonably adherent; 4: Very adherent; 5: Extremely adherentgbtadher
daysrzIntegerRecommendeddays since randomizationbtaa0b, gbta0b
btaa5aIntegerRecommendedIs this visit 5-11?0;10=No; 1=Yes
weekFloatRecommendedWeek in level/study99=week 10-week 14tars_session
tars_hw_freqIntegerRecommendedHow frequently did the patient do the assigned homework?0::8; -99; 88; 770= No attempts; 1 =1; 2 =2; 3= 3; 4= Half of the time; 5= 5; 6= 6; 7= 7; 8= Assigned frequency; -99= NA; 88= Missing; 77= Refused;
tars_hw_compIntegerRecommendedHow complete were the recording forms for the assigned homework?0::8; -99; 88; 770= No recording; 1 =1; 2 =2; 3= 3; 4= 50% complete; 5= 5; 6= 6; 7= 7; 8= Fully complete; -99= NA; 88= Missing; 77= Refused;
tars_principlesIntegerRecommendedHow well did the patient follow ERP/Anciety Management principles when working on assigned homework?0::8; -99; 88; 770=Did not follow principles; 1 =1; 2 =2; 3= 3; 4= Followed principles moderately; 5= 5; 6= 6; 7= 7; 8= Excellent adherence to principles; -99= NA; 88= Missing; 77= Refused;
tars_notesString50RecommendedAre there any reasons for not attempting / fully attempting completing assigned homework?
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.

Distribution for DataStructure: bta01 and Element:
Chart Help

Filters enable researchers to view the data shared in NDA before applying for access or for selecting specific data for download or NDA Study assignment. For those with access to NDA shared data, you may select specific values to be included by selecting an individual bar chart item or by selecting a range of values (e.g. interview_age) using the "Add Range" button. Note that not all elements have appropriately distinct values like comments and subjectkey and are not available for filtering. Additionally, item level detail is not always provided by the research community as indicated by the number of null values given.

Filters for multiple data elements within a structure are supported. Selections across multiple data structures will be supported in a future version of NDA.