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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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Clinical Trials: Mixed Assessments



Clinical Trials: Mixed Assessments

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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/projectSUBJECT, case_id
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging was completed. MM/DD/YYYYRequired fieldBAFDate
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.bslage
genderString20RequiredSex of the subjectM;FM = Male; F = Female
i_groupString3RecommendedTreatment AssignmentCET; EST; TAU; SPITAU = Treatment As Usual; SPI = Suicide Prevention Intervention
visitString50RecommendedVisit nameCharacter description of each type of visitTMPT
f111_iqIntegerRecommendedAmmons Quick Test Full Scale IQ
iq2String5RecommendedIQ Dichotomized Into High and Low Groupshigh; low
ill_lenFloatRecommendedIllness Duration at Baseline (years since first psychotic symptom)
rx_cpzFloatRecommendedTotal Antipsychotic Dosage (CPZ Equivalents)
mccb_speed_tscoreFloatRecommendedMATRICS Speed of Processing domain (T-Score)SPEED
delaycFloatRecommendedSimple Reaction Time: Fixed Interstimulus Interval (milliseconds)
delayvFloatRecommendedSimple Reaction Time: Variable Interstimulus Interval (milliseconds)
sdaveIntegerRecommendedChoice Reaction Time: Dominant Hand (milliseconds)
dravelIntegerRecommendedChoice Reaction Time: Dominant Hand (milliseconds)
vstimrFloatRecommendedVisual Spatial Scanning: Time to Detect Embedded Stimulus (seconds)
gencogFloatRecommendedNeurocognitive Composite
lmtIntegerRecommendedWechsler Memory Scale Revised Stories A+B: Immediate Recall0::50
lm2tIntegerRecommendedWechsler Memory Scale Revised Stories A+B: Delayed Recall0::50
cvlt_total_recallIntegerRecommendedCalifornia Verbal Learning Test: Total RecallC1
cvlt_short_freerecallIntegerRecommendedCalifornia Verbal Learning Test: Short-term Free RecallC5
cvlt_long_freerecallIntegerRecommendedCalifornia Verbal Learning Test: Long-term Free RecallC7
scoring_digitspan_rawFloatRecommendedDigit Span Raw ScoreW_SPAN
scoring_vocabulary_rawFloatRecommendedWAIS. Vocabulary Raw ScoreW_VOC
tmtb_rawFloatRecommendedTrailmaking test Part B (Paper & pencil): Time to completion (Seconds)TBTSEC
wais_pictarr_rawIntegerRecommendedWechsler Adult Intelligence Scale Picture Arrangement: Raw scoreW_PIC
wcst_categoriesFloatRecommendedWisconsin Card Sorting Test: Categories Achieved0::6SWCATEG
wcst_persev_errorsIntegerRecommendedWisconsin Card Sorting Test: Perseverative Errors0::128WISC7
wcst_nonpersev_errorsIntegerRecommendedWisconsin Card Sorting Test: Non-Perseverative Errors0::128WISC9
wcst_percent_conceptualFloatRecommendedWisconsin Card Sorting Test: Percent Conceptual Responses0::100WISC12
toldx_initexecFloatRecommendedTower of London - DX: Ratio of initiation to Execution timeF116_3
toldx_moveIntegerRecommendedTower of London - DX: Total move score0::189F116_2
wais_digsym_rawIntegerRecommendedWechsler Adult Intelligence Scale Digit-Symbol Substitution: Raw scoreW_SYM
avnescogperFloatRecommendedNeurological Evaluation Scale: Cognitive Perceptual0::1
avnesrepmotFloatRecommendedNeurological Evaluation Scale: Repetition Motor0::1
cogstylFloatRecommendedCognitive Style Composite
impovIntegerRecommendedImpoverished Style Rating3::15
disorgIntegerRecommendedDisorganized Style Rating3::15
rigidIntegerRecommendedRigid Style Rating3::15
t101IntegerRecommendedTotal Cognitive Style Impairment, Disability, and Social Handicap9::45
c_scoreIntegerRecommendedChange in Movement Severity ScorePhase-specific change (within each phase, change is calculated from that phase's baseline measurement)
cstartFloatRecommendedProblems Getting Started1::5
cfocusFloatRecommendedProblems Focusing1::5
cchangFloatRecommendedProblems Changing Ideas1::5
soccogFloatRecommendedSocial Cognition Component
c_tolerFloatRecommendedSocial Cognition Profile: Tolerant Factor1::5
c_supFloatRecommendedSocial Cognition Profile: Supportive Factor1::5
c_percFloatRecommendedSocial Cognition Profile: Perceptive Factor1::5
c_confFloatRecommendedSocial Cognition Profiel: Confident Factor1::5
scd2IntegerRecommendedCognitive Styles and Social Cognition Eligbility Criteria: Interpersonal Ineffectiveness Rating1::5
scd3IntegerRecommendedCognitive Styles and Social Cognition Eligbility Criteria: Lack of Foresight1::5
scd4IntegerRecommendedCognitive Styles and Social Cognition Eligbility Criteria:: Gist Extraction Deficits1::5
scd5IntegerRecommendedCognitive Styles and Social Cognition Eligbility Criteria:: Adjustment to Disability1::5
f500_b1FloatRecommendedMayer-Salovey- Caruso Emotional Intelligence Test: Perceiving Emotions
f500_b2FloatRecommendedMayer-Salovey-Caruso Emotional Intelligence Test: Facilitating Emotions
f500_b3FloatRecommendedMayer-Salovey-Caruso Emotional Intelligence Test: Understanding Emotions
msceit_memo_tscoreFloatRecommendedMayer-Salovey-Caruso Emotional Intelligence Test: Managing Emotions subtest (T score)F500_B4
socadjFloatRecommendedSocial Adjustment Composite
mra_employIntegerRecommendedMajor Role Adjustment Inventory: employment1::4employ
f51IntegerRecommendedPerformance Potential Inventory: Global Work Readiness1::5
workaffFloatRecommendedSocial Adjustment Scale II: Work Affinity0::4
outhomeFloatRecommendedMajor Role Adjustment Inventory: Relationships Outside The Home
ppi_sfFloatRecommendedPerformance Potential Inventory: Social Functioning1::5
anguishFloatRecommendedSocial Adjustment Scale II: Interpersonal Anguish0::4
intrelFloatRecommendedSocial Adjustment Scale II: Sexual Relations0::5
prirelFloatRecommendedSocial Adjustment Scale II: Primary Relations0::4
socrelFloatRecommendedSocial Adjustment Scale II: Social Leasure0::4
majrolFloatRecommendedMajor Role Adjustment Inventory: Major Role Adjustment1::7
funcFloatRecommendedMajor Role Adjustment Inventory: Overall Functioning1::7
gasFloatRecommendedGlobal Assessment Scale0::100cgas
ppi_msFloatRecommendedPerformance Potential Inventory: Mental Status1::5
ppi_dlFloatRecommendedPerformance Potential Inventory: Activities of Daily Living1::5
ppi_tpFloatRecommendedPerformance Potential Inventory: Instrumental Task Performance1::5
selfcareFloatRecommendedSocial Adjustment Scale II: Self Care0::4
symptomFloatRecommendedSymptom Composite
bprs_anxiIntegerRecommendedBPRS item 2 Anxiety1::9; -9; 991 = Not present; 2 = Very mild; 3 = Mild; 4 = Moderate; 5 = Moderately severe; 6 = Severe; 7 = Extremely severe; 9=not assessed; -9=unknown; 99=not ratedANXDEP, anxdep
raskIntegerRecommendedRaskin Depression Inventory3::15
coviIntegerRecommendedCovi Anxiety Inventory3::15
bprs_emotIntegerRecommendedBPRS item 18 Emotional withdrawal1::9; -91 = Not present; 2 = Very mild; 3 = Mild; 4 = Moderate; 5 = Moderately severe; 6 = Severe; 7 = Extremely severe; 9=not assessed; -9=unknownWITHRET, WITHRET
wingIntegerRecommendedWing Negative Symptoms Scale6::30
bprs_unusIntegerRecommendedBPRS item 7 Unusual thought content1::9; -91 = Not present; 2 = Very mild; 3 = Mild; 4 = Moderate; 5 = Moderately severe; 6 = Severe; 7 = Extremely severe; 9=not assessed; -9=unknownTHOTDIS, THOTDIS
bprs_hostIntegerRecommendedBPRS item 5 Hostility1::9; -91 = Not present; 2 = Very mild; 3 = Mild; 4 = Moderate; 5 = Moderately severe; 6 = Severe; 7 = Extremely severe; 9=not assessed; -9=unknownHOSTIL, HOSTIL
howillIntegerRecommendedGlobal Degree of Illness1::7
siteString100RecommendedSiteStudy Sitesite_no
trt_grpString10RecommendedTreatment Group Assignment1;1AO;1CT;2;31=Group 1 first 8 weeks; 1AO=Group 1 8 week add on; 1CT=Group 1 8 week cross taper; 2=Group 2; 3=Group 3
days_baselineIntegerRecommendedDays since baselinebsldays
etypeString10RecommendedRating PeriodBSL;WK1;WK2;WK3;WK4;WK5;WK6;WK7;WK8;WK9;WK10;WK11;WK12;WK13;WK14;WK15;WK16BSL=Baseline; WK1-WK16=Weeks 1-16
respond_detail_oth_specString255RecommendedRespondent detailsinformnt
relationshipString255RecommendedRelationship of respondent to individual
1;2;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;21;22;23;24;25;26;27;28;29;30;31;32;33;34;35;36;37;38;39;40;41;42;43;44;45;46;47;48;49;50;51;52;53;54;55;56;57;58;59;60;61;62;63;64;65;66;67;68;69;70;71;72;73;74;75;76;77;78;79;80;81;82;83;84; -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; 90= Other, specify; -999= Missing; 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 maleinfrmnt2
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: mixed01 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.