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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.

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Description
Value Range
Notes
Data Structures with shared data
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Affect and Arousal Scale

afars

01

Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotes
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
afars_1IntegerRecommendedWhen I'm doing well at something, I really feel good0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_2IntegerRecommendedOther people upset me0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_3IntegerRecommendedOften I have trouble getting my breath0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_4IntegerRecommendedI get upset easily0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_5IntegerRecommendedMy mouth gets dry0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_6IntegerRecommendedI have fun at school0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_7IntegerRecommendedMy heart beats too fast0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_8IntegerRecommendedLittle things bother me0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_9IntegerRecommendedI will try something new if I think it will be fun0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_10IntegerRecommendedMy hands get shaky0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_11IntegerRecommendedWhen I get something I want, I feel excited0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_12IntegerRecommendedI over-react to things0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_13IntegerRecommendedI have trouble swallowing0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_14IntegerRecommendedI love going to new places0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_15IntegerRecommendedI get upset by little things0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_16IntegerRecommendedI feel shaky0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_17IntegerRecommendedI would love to win a contest0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_18IntegerRecommendedI dont like to wait for things0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_19IntegerRecommendedI like being with people0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_20IntegerRecommendedI have trouble breathing0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_21IntegerRecommendedWhen I see a chance for fun, I take it0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_22IntegerRecommendedI get upset0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_23IntegerRecommendedWhen good things happen to me, I feel full of energy0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_24IntegerRecommendedI have plenty of friends0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_25IntegerRecommendedI sometimes feel faint0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_26IntegerRecommendedI cant calm down once I am upset0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_27IntegerRecommendedOften I feel sick in my stomach0::30=Never true; 1=Sometimes true; 2=Most time true; 3=Always true
afars_paIntegerRequiredPositive Affect9999=NA/missing
afars_naIntegerRequiredNegative Affect9999=NA/missing
afars_phIntegerRequiredPhysiological Hyperarousal9999=NA/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: afars01 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.