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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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CPEA STAART WPPSI 4y0m to 7y3m



WIPPSI 4y0m to 7y3m as defined by the CPEA STAART project

Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired fieldWPPSI_DATE_STD
cycleIntegerRecommendedTimepoint information-1 = Screener; 0 = Baseline; 97 = Taper; 98 = Withdrawal; 99 = Interim contact; Otherwise: weeks since baseline
patidString20Recommendedsrc_Subject_idA Participant ID provided by DM-STAT must be present to process form
networkString20RecommendedNetworkCPEA or STAART Network
siteString100RecommendedSiteStudy Site
wppsi_bld_aeIntegerRecommendedAge Equivalent Block Design
wppsi_bld_rawscreIntegerRecommendedRaw score Raw - Block Design0 :: 40
wppsi_bld_scldscreIntegerRecommendedScaled score SS - Block Design0 :: 20
wppsi_cdg_rawscreIntegerRecommendedScaled score SS -Coding0 :: 65
wppsi_cdg_scldscreIntegerRecommendedRaw score Raw -Coding0 :: 20
wppsi_cmp_rawscreIntegerRecommendedRaw score Raw - Comprehension0 :: 38
wppsi_cmp_scldscreIntegerRecommendedScaled score SS - Comprehension0 :: 20
wppsi_fiq_compscreIntegerRecommendedComposite score40 :: 160
wppsi_fiq_sumscldIntegerRecommendedFull Scale IQ Sum of Scaled Scores5 :: 150
wppsi_inf_rawscreIntegerRecommendedRaw score Raw - Information0 :: 34
wppsi_inf_scldscreIntegerRecommendedScaled score SS - Information0 :: 20
wppsi_mxr_rawscreIntegerRecommendedRaw score Raw - Matrix Reasoning0 :: 29
wppsi_mxr_scldscreIntegerRecommendedScaled score SS - Matrix Reasoning0 :: 20
wppsi_oba_aeIntegerRecommendedAge Equivalent
wppsi_oba_rawscreIntegerRecommendedRaw score0 :: 37
wppsi_oba_scldscreIntegerRecommendedScaled score0 :: 20
wppsi_pcc_rawscreIntegerRecommendedRaw score0 :: 32
wppsi_pcc_scldscreIntegerRecommendedScaled score0 :: 20
wppsi_pcn_rawscreIntegerRecommendedRaw score Raw - Picture Concepts0 :: 28
wppsi_pcn_scldscreIntegerRecommendedScaled score SS- Picture Concepts0 :: 20
wppsi_piq_compscreIntegerRecommendedComposite score Composite - Performance IQ45 :: 155
wppsi_piq_sumscldIntegerRecommendedSum of scaled scores Sum - Performance2 :: 58
wppsi_pnm_rawscreIntegerRecommendedRaw score0 :: 30
wppsi_pnm_scldscreIntegerRecommendedScaled score0 :: 20
wppsi_psd_compscreIntegerRecommendedComposite score Composite - Processing Speed40 :: 150
wppsi_psd_sumscldIntegerRecommendedSum of scaled scores Sum - Processing Speed2 :: 38
wppsi_rcv_rawscreIntegerRecommendedRaw score0 :: 38
wppsi_rcv_scldscreString255RecommendedScaled score
wppsi_sbs_rawscreIntegerRecommendedRaw score Raw - Symbol Search0 :: 50
wppsi_sbs_scldscreIntegerRecommendedScaled score SS - Symbol Search0 :: 20
wppsi_sml_rawscreIntegerRecommendedRaw score Raw - Similarities0 :: 46
wppsi_sml_scldscreIntegerRecommendedScaled score SS - Similarities0 :: 20
wppsi_vcb_aeIntegerRecommendedAge Equivalent Vocabulary
wppsi_vcb_rawscreIntegerRecommendedRaw score Raw - Vocabulary0 :: 43
wppsi_vcb_scldscreIntegerRecommendedScaled score SS - Vocabulary0 :: 20
wppsi_versionString35RecommendedWIPPSI Version
wppsi_viq_compscreIntegerRecommendedComposite score Composite - Verbal IQ46 :: 155
wppsi_viq_scldscreIntegerRecommendedSum of scaled scores Sum - Verbal2 :: 58
wppsi_wrs_rawscreIntegerRecommendedRaw score Raw - Word Reasoning0 :: 28
wppsi_wrs_scldscreIntegerRecommendedScaled score SS - Word Reasoning0 :: 20
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: cs_wippsi_4y0m_7y3m02 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.