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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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Selected Filters
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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

Value Range
Data Structures with shared data
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National Adult Reading Test



Download Definition as
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Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*
src_subject_idString20RequiredSubject ID how it's defined in lab/project
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging 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
study_levelIntegerRecommendedLast degree succeeded1;2;3Level 1: school leaving certification; level 2: high school study level; level 3: high school diploma and higer education
ttt_armsString3RecommendedTreatment arms of this study. Individualized therapy (RECOS program) compared with the more general Cognitive Remediation Therapy (CRT)CRT;REC
visitString50RecommendedVisit nameCharacter description of each type of visitfollow_up
version_formString100RecommendedForm used
nart_1IntegerRecommendedCHORD; Not a translation. French version: zinc0;11=correct; 0 =incorrect
nart_2IntegerRecommendedACHE; Not a translation. French version: starter0;11=correct; 0 =incorrect
nart_3IntegerRecommendedDEPOT; Not a translation. French version: agenda0;11=correct; 0 =incorrect
nart_4IntegerRecommendedAISLE; Not a translation. French version: beotien0;11=correct; 0 =incorrect
nart_5IntegerRecommendedBOUQUET; Not a translation. French version: prompt0;11=correct; 0 =incorrect
nart_6IntegerRecommendedPSALM; Not a translation. French version: isthme0;11=correct; 0 =incorrect
nart_7IntegerRecommendedCAPON; Not a translation. French version: occire0;11=correct; 0 =incorrect
nart_8IntegerRecommendedDENY; Not a translation. French version: gars0;11=correct; 0 =incorrect
nart_9IntegerRecommendedNAUSEA; Not a translation. French version: varech0;11=correct; 0 =incorrect
nart_10IntegerRecommendedDEBT; Not a translation. French version: speaker0;11=correct; 0 =incorrect
nart_11IntegerRecommendedCOURTEOUS; Not a translation. French version: coccyx0;11=correct; 0 =incorrect
nart_12IntegerRecommendedRAREFY; Not a translation. French version: facetie0;11=correct; 0 =incorrect
nart_13IntegerRecommendedEQUIVOCAL; Not a translation. French version: damner0;11=correct; 0 =incorrect
nart_14IntegerRecommendedNAIVE; Not a translation. French version: charisme0;11=correct; 0 =incorrect
nart_15IntegerRecommendedCATACOMB; Not a translation. French version: gnome0;11=correct; 0 =incorrect
nart_16IntegerRecommendedGAOLED; Not a translation. French version: lichen0;11=correct; 0 =incorrect
nart_17IntegerRecommendedTHYME; Not a translation. French version: argutie0;11=correct; 0 =incorrect
nart_18IntegerRecommendedHEIR; Not a translation. French version: beatnik0;11=correct; 0 =incorrect
nart_19IntegerRecommendedRADIX; Not a translation. French version: gnose0;11=correct; 0 =incorrect
nart_20IntegerRecommendedASSIGNATE; Not a translation. French version: chelem0;11=correct; 0 =incorrect
nart_21IntegerRecommendedHIATUS; Not a translation. French version: aulx0;11=correct; 0 =incorrect
nart_22IntegerRecommendedSUBTLE; Not a translation. French version: croc0;11=correct; 0 =incorrect
nart_23IntegerRecommendedPROCREATE; Not a translation. French version: stagnant0;11=correct; 0 =incorrect
nart_24IntegerRecommendedGIST; Not a translation. French version: charale0;11=correct; 0 =incorrect
nart_25IntegerRecommendedGOUGE; Not a translation. French version: caecal0;11=correct; 0 =incorrect
nart_26IntegerRecommendedSUPERFLUOUS; Not a translation. French version: chorion0;11=correct; 0 =incorrect
nart_27IntegerRecommendedSIMILE; Not a translation. French version: fuel0;11=correct; 0 =incorrect
nart_28IntegerRecommendedBANAL; Not a translation. French version: pouls0;11=correct; 0 =incorrect
nart_29IntegerRecommendedQUADRUPED; Not a translation. French version: scherzo0;11=correct; 0 =incorrect
nart_30IntegerRecommendedCELLIST; Not a translation. French version: broc0;11=correct; 0 =incorrect
nart_31IntegerRecommendedFACADE; Not a translation. French version: choanne0;11=correct; 0 =incorrect
nart_32IntegerRecommendedZEALOT; Not a translation. French version: aulne0;11=correct; 0 =incorrect
nart_33IntegerRecommendedDRACHM0;11=correct; 0 =incorrect
nart_34IntegerRecommendedAEON0;11=correct; 0 =incorrect
nart_35IntegerRecommendedPLACEBO0;11=correct; 0 =incorrect
nart_36IntegerRecommendedABSTEMIOUS0;11=correct; 0 =incorrect
nart_37IntegerRecommendedDETENTE0;11=correct; 0 =incorrect
nart_38IntegerRecommendedIDYLL0;11=correct; 0 =incorrect
nart_39IntegerRecommendedPUERPERAL0;11=correct; 0 =incorrect
nart_40IntegerRecommendedAVER0;11=correct; 0 =incorrect
nart_41IntegerRecommendedGAUCHE0;11=correct; 0 =incorrect
nart_42IntegerRecommendedTOPIARY0;11=correct; 0 =incorrect
nart_43IntegerRecommendedLEVIATHAN0;11=correct; 0 =incorrect
nart_44IntegerRecommendedBEATIFY0;11=correct; 0 =incorrect
nart_45IntegerRecommendedPRELATE0;11=correct; 0 =incorrect
nart_46IntegerRecommendedSIDEREAL0;11=correct; 0 =incorrect
nart_47IntegerRecommendedDEMESNE0;11=correct; 0 =incorrect
nart_48IntegerRecommendedSYNCOPE0;11=correct; 0 =incorrect
nart_49IntegerRecommendedLABILE0;11=correct; 0 =incorrect
nart_50IntegerRecommendedCAMPANILE0;11=correct; 0 =incorrect
errors_totalIntegerRecommendedTotal Errors
fullscale_iqIntegerRequiredFull Scale IQ
iqscores_verbiqFloatRequiredVerbal IQ999=missing
iqscores_perfiqFloatRequiredPerformance IQ999=missing
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: nart01 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.