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NDA Help Center

Filter Cart

The Filter Cart provides a way to query and access data for which you may be interested.  There are multiple places to go query and Add to Filter Cart (Sometimes called Download).  

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 add subjects, sometimes it may take a few minutes to populate.  You can continue to do other things 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 available for the subjects selected 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 available.  However, if you want to see all of the clinical and phenotype, then select, "Find All Subject Data" to see all the data avaialble for those subjects.  

when a secord or third filter is applied, an AND condition is used to determine the subjects that are exist in all filters.  If the subject does not appear in any filter, that subjects data will be excluded from your filter cart. Given the sparcity of data in the NDA, it is possible for no subjects to appear across filters.  If that happens, clear your filter cart, and start over.  

The NDA is looking to enhance query/filtering.  Until additional tools become available, it is best to package more data than you need and then package and download the data and use other tools to further restrict and analyze the data.  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



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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

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Data Structures with shared data
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Aggression and Conduct Problems Scale



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/projectid
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
days_baselineIntegerRecommendedDays since baselinedayagg
assbdicString5RecommendedAssessment PointD;14;E;24;LB;36;72;96;120; 9; B; 3; 7; 144; 168;192; CD=MTA baseline assessment; 14=MTA 14 month assessment; E=MTA early termination assessment; B = MTA Pre-Baseline Screening Assessment (579/579); 09 = MTA 9 Month Assessment (530/530); 24=MTA 24 month assessment; LB=LNCG baseline assessment; 36=MTA and LNCG 3 year assessment; 72=MTA and LNCG 6 year assessment; 96=MTA and LNCG 8 year assessment; 03 = MTA 3 Month Assessment (438/687);120=MTA and LNCG 10 year assessment; 7= 7th Grade Assessment (221/276); 144 = MTA & LNCG 12 Month Assessment (578/578); 168 = MTA & LNCG 14 Month Assessment (585/585); 192 = MTA & LNCG 16 Month Assessment (505/505); C = MTA Pre-Baseline Screening Assessment (78/78)assagg
relationshipIntegerRecommendedRelationship of respondent to individual
1::88; 90;-999
1 = Biological mom; 2 = Biological dad; 3 = Grandparent; 4 = Special education (sped) teacher; 5 = General education teacher; 6 = Occupational therapist; 7 = Speech and language therapist; 8 = Behavioral therapist; 9 = Paraprofessional; 10 = Aide; 11 = Principal; 12 = Administrator; 13 = Other; 14 = Content teacher; 15 = Parent center director; 16 = Self; 17=Adoptive mother; 18=Adoptive father; 19=Foster mother; 20 = Foster father; 21=Grandmother; 22=Grandfather; 23=Step-mother; 24 = Step-father; 25=Aunt; 26=Uncle; 27=Missing Data; 28=Both parents;31= Grandmother from mother side; 32= Grandfather from mother side; 33= Grandmother from father side; 34= Grandfather from father side; 36= Brother; 37= Sister; 38= Cousin; 39= female caregiver; 40=male caregiver; 41=Female child; 42=Male child; 43=Spouse/Mate; 44=Friend; 45=Parent; 46=Significant other; 47=Sibling; 48=Son/Daughter; 49=Son-in-law/Daughter-in law; 50=Other Relative; 51=Paid caregiver; 52=Friends; 53=Roommate; 54=Supervisor; 55=mother's boyfriend; 56=other parental figure; 57=Summary; 58=counselor ; 59 = other female relative; 60 = other male relative; 61 = non-relative ; 62=Maternal Aunt; 63=Maternal Uncle; 64=Maternal Cousin; 65 = Paternal Aunt; 66=Paternal Uncle; 67=Paternal Cousin ; 68=Biological/Adoptive Mother and Grandmother; 69=Biological/Adoptive Mother and Stepmother and Grandmother; 70=Biological/Adoptive Mother and Grandmother and Foster Father; 71=Biological/Adoptive Mother and Stepmother and Foster Mother; 72=Biological/Adoptive Mother and Foster Mother; 73=Biological/Adoptive Mother and Biological/Adoptive Father; 74=Biological/Adoptive Mother and Stepmother and Biological/Adoptive Father; 75=Biological/Adoptive Mother and Other; 76=Biological/Adoptive Mother and Stepmother and Stepfather; 77=Biological/Adoptive Mother and Stepfather; 78=Biological/Adoptive Mother and Grandfather; 79=Biological/Adoptive Mother and Stepmother and Foster Father; 80=Biological/Adoptive Mother and Stepmother; 81=Guardian, female; 82=Other female; 83=Guardian, male; 84=Other male; 85=Other/Grandparent/Nanny; 86 = Mother, Father, Guardian; 87 = Daughter, son, grandchild; 88 = Professional (e.g., social worker, nurse, therapist, psychiatrist, or group home staff); 90=Other; -999=Missingrelagg
actbdicIntegerRecommendedActive status0::50=Inactive-Data collected after the 14 month treatment phase/after early termination from treatment phase/prior to treatment phase; 1=Active-Data collected during the 14 month treatment phase while subject received originally assigned treatment regardless of degree of compliance; 2=Active-This is the last active assessment for subjects who were about to violate treatment arm by receiving alternate treatment; 3=Active-This is the last active assessment for subjects who were about to leave the study by moving away;4=Yes, Active; 5=No, Not Activeactagg
siteString100RecommendedSiteStudy Sitesitenum
sjtypIntegerRecommendedSubject type1;21=MTA randomized trial subject; 2=Local normative comparison group (LNCG) subject
ag1IntegerRecommendedBullies1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag2IntegerRecommendedInitiates fights1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag3IntegerRecommendedWeapon1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag4IntegerRecommendedPhysically cruel to people1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag5IntegerRecommendedPhysically cruel to animals1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag6IntegerRecommendedForced someone into sex1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag7IntegerRecommendedFire setting1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag8IntegerRecommendedDestroyed property of others1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag9IntegerRecommendedBroke into house or car1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag10IntegerRecommendedStole with confrontation1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag11IntegerRecommendedLies1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag12IntegerRecommendedShoplifting, forgery1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag13IntegerRecommendedStays out at night1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag14IntegerRecommendedRun away1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag15IntegerRecommendedTruant from school1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag16IntegerRecommendedBroke or damaged property in house on purpose1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag17IntegerRecommendedBroke or damaged school property on purpose1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag18IntegerRecommendedBroke or damaged other items on purpose1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag19IntegerRecommendedStole a bicycle or skateboard1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag20IntegerRecommendedHas taken from a store1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag21IntegerRecommendedHas taken money at home1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag22IntegerRecommendedHas taken other goods at home1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag23IntegerRecommendedHas taken anything at school1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag24IntegerRecommendedHas taken from others house or yard1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag25IntegerRecommendedHas taken from a car1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag26IntegerRecommendedCheated on school tests1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag27IntegerRecommendedHit a teacher or adult at school1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag28IntegerRecommendedHit a parent1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag29IntegerRecommendedHit other children1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag30IntegerRecommendedHit siblings1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag31IntegerRecommendedGone into others house or property1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag32IntegerRecommendedBeen sent home from school for bad behavior1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag33IntegerRecommendedGraffiti on walks, sidewalks, cars, etc1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag34IntegerRecommendedBeen loud, unruly in public place1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag35IntegerRecommendedCarry weapon1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag36IntegerRecommendedAvoid paying1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag37IntegerRecommendedSnatched purse or pickpocketed1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
ag38IntegerRecommendedThrown rocks or bottles1::41=Never; 2=Rarely; 3=Occasionally; 4=Often
aggcdxFloatRecommendedConduct Disorder Scale (mean score)
aggcdtFloatRecommendedConduct Disorder Scale (total score)Includes items 1-15
aggasxFloatRecommendedAgression Scale (mean score)
aggastFloatRecommendedAgression Scale (total score)Includes items 16-38
aggtotxFloatRecommendedTotal Score (mean score)
aggtottFloatRecommendedTotal Score (total score)Includes all items 1-38
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: agg01 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.