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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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Conners Continuous Performance Test



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.agecptc
genderString20RequiredSex of the subjectM;FM = Male; F = Femalesexmf
days_baselineIntegerRecommendedDays since baselinedaycptc
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)asscptc
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=Missingrelcptc
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 Activeactcptc
siteString100RecommendedSiteStudy Sitesitenum
sjtypIntegerRecommendedSubject type1;21=MTA randomized trial subject; 2=Local normative comparison group (LNCG) subject
medcptcString1RecommendedMedication status on day of testingY;NY=Yes; N=No
rtmnFloatRecommendedWhole test - mean hit reaction timehitreactiontimerawvalue
rtsdFloatRecommendedWhole test - standard deviation of mean hit reaction time
eommFloatRecommendedWhole test - errors of omissionomissionsrawvalue
ecommFloatRecommendedWhole test - errors of commission
dpFloatRecommendedWhole test - d prime
betaFloatRecommendedWhole test - beta
rtmnb1FloatRecommendedMean hit reaction time block 1 trials 1-60
rtmnb2FloatRecommendedMean hit reaction time block 2 trials 61-120
rtmnb3FloatRecommendedMean hit reaction time block 3 trials 121-180
rtmnb4FloatRecommendedMean hit reaction time block 4 trials 181-240
rtmnb5FloatRecommendedMean hit reaction time block 5 trials 241-300
rtmnb6FloatRecommendedMean hit reaction time block 6 trials 301-360
rtsdb1FloatRecommendedMean hit reaction time sd block 1 trials 1-60
rtsdb2FloatRecommendedMean hit reaction time sd block 2 trials 61-120
rtsdb3FloatRecommendedMean hit reaction time sd block 3 trials 121-180
rtsdb4FloatRecommendedMean hit reaction time sd block 4 trials 181-240
rtsdb5FloatRecommendedMean hit reaction time sd block 5 trials 241-300
rtsdb6FloatRecommendedMean hit reaction time sd block 6 trials 301-360
eommb1FloatRecommendedErrors of omission block 1 trials 1-60
eommb2FloatRecommendedErrors of omission block 2 trials 61-120
eommb3FloatRecommendedErrors of omission block 3 trials 121-180
eommb4FloatRecommendedErrors of omission block 4 trials 181-240
eommb5FloatRecommendedErrors of omission block 5 trials 241-300
eommb6FloatRecommendedErrors of omission block 6 trials 301-360
ecommb1FloatRecommendedErrors of commission block 1 trials 1-60
ecommb2FloatRecommendedErrors of commission block 2 trials 61-120
ecommb3FloatRecommendedErrors of commission block 3 trials 121-180
ecommb4FloatRecommendedErrors of commission block 4 trials 181-240
ecommb5FloatRecommendedErrors of commission block 5 trials 241-300
ecommb6FloatRecommendedErrors of commission block 6 trials 301-360
dpb1FloatRecommendedD prime block 1 trials 1-60
dpb2FloatRecommendedD prime block 2 trials 61-120
dpb3FloatRecommendedD prime block 3 trials 121-180
dpb4FloatRecommendedD prime block 4 trials 181-240
dpb5FloatRecommendedD prime block 5 trials 241-300
dpb6FloatRecommendedD prime block 6 trials 301-360
betab1FloatRecommendedBeta block 1 trials 1-60
betab2FloatRecommendedBeta block 2 trials 61-120
betab3FloatRecommendedBeta block 3 trials 121-180
betab4FloatRecommendedBeta block 4 trials 181-240
betab5FloatRecommendedBeta block 5 trials 241-300
betab6FloatRecommendedBeta block 6 trials 301-360
rtmni1FloatRecommendedMean hit reaction time 1 second isi trial blocks
rtmni2FloatRecommendedMean hit reaction time 2 second isi trial blocks
rtmni4FloatRecommendedMean hit reaction time 4 second isi trial blocks
rtsdi1FloatRecommendedMean hit reaction time sd 1 second isi trial blocks
rtsdi2FloatRecommendedMean hit reaction time sd 2 second isi trial blocks
rtsdi4FloatRecommendedMean hit reaction time sd 4 second isi trial blocks
eommi1FloatRecommendedErrors of omission - 1 second isi trial blocks
eommi2FloatRecommendedErrors of omission - 2 second isi trial blocks
eommi4FloatRecommendedErrors of omission - 4 second isi trial blocks
ecommi1FloatRecommendedErrors of commission - 1 second isi trial blocks
ecommi2FloatRecommendedErrors of commission - 2 second isi trial blocks
ecommi4FloatRecommendedErrors of commission - 4 second isi trial blocks
dpi1FloatRecommendedD prime 1 second isi trial blocks
dpi2FloatRecommendedD prime 2 second isi trial blocks
dpi4FloatRecommendedD prime 4 second isi trial blocks
betai1FloatRecommendedBeta - 1 second isi trial blocks
betai2FloatRecommendedBeta - 2 second isi trial blocks
betai4FloatRecommendedBeta - 4 second isi trial blocks
omissionstscoreFloatRecommendedOmissions T Scorep7902srspreschooltscoresa
commissionsrawvalueFloatRecommendedCommissions Raw Valuep7902srspreschooltscorescog
commissionstscoreFloatRecommendedCommissions T Scorep7902srspreschooltscorescomm
hitreactiontimetscoreFloatRecommendedHit Reaction Time T Scorep7902srspreschooltscoresmot
hitreactiontimeserawvalueFloatRecommendedHit Reaction Time SE Raw Valuep7902srspreschooltscorerb
hitreactiontimesetscoreFloatRecommendedHit Reaction Time SE T Scorep7902srspreschooltscoretotal
variabilityrawvalueFloatRecommendedVariability Raw Value
variabilitytscoreFloatRecommendedVariability T Score
detectabilityrawvalueFloatRecommendedDetectability Raw Value
detectabilitytscoreFloatRecommendedDetectability T Score
responserawvalueFloatRecommendedResponse Raw Value
responsetscoreFloatRecommendedResponse T Score
perseverationsrawvalueFloatRecommendedPerseverations Raw Value
perseverationstscoreFloatRecommendedPerseverations T Score
version_formString100RecommendedForm used/assessment namewhichtestwasadministered
hrtblockchangerawvalFloatRecommendedHRT Block Change Raw Values
hrtblockchangetscoresIntegerRecommendedHRT Block Change TScores
hrtisichangerawvalFloatRecommendedHRT ISI Change Raw Values
hrtisichangetscoresIntegerRecommendedHRT ISI Change TScores
hitreactiontimesdrawvalueFloatRecommendedHit Reaction Time SD Raw Value
hitreactiontimesdtscoreIntegerRecommendedHit Reaction Time SD T Score
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: cptc01 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.