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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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How I Feel Questionnaire



HOW-I-FEEL QUESTIONNAIRE Developed by C.D. Spielberger, C.D. Edwards, J. Montuori, and R. Lushene STAIC Forms C-1 and C-2

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
comments_miscString4,000RecommendedMiscellaneous comments on study, interview, methodology relevant to this form data
staic_c1_q1IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very calm; 2= calm; 3= not calm
staic_c1_q2IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very upset; 2= upset; 3= not upset
staic_c1_q3IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very pleasant; 2=pleasant; 3= not pleasant
staic_c1_q4IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very nervous; 2=nervous ; 3= not nervous
staic_c1_q5IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very jittery; 2= jittery ; 3= not jittery
staic_c1_q6IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very rested; 2= rested ; 3= not rested
staic_c1_q7IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very scared; 2= scared ; 3= not scared
staic_c1_q8IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very relaxed; 2= relaxed ; 3= not relaxed
staic_c1_q9IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very worried; 2= worried ; 3= not worried
staic_c1_q10IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very satisfied; 2= satisfied ; 3= not satisfied
staic_c1_q11IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very frightened; 2= frightened ; 3= not frightened
staic_c1_q12IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very happy; 2= happy ; 3= not happy
staic_c1_q13IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very sure; 2= sure ; 3= not sure
staic_c1_q14IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very good; 2= good ; 3= not good
staic_c1_q15IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very troubled; 2= troubled ; 3= not troubled
staic_c1_q16IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very bothered; 2= bothered ; 3= not bothered
staic_c1_q17IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very nice; 2= nice ; 3= not nice
staic_c1_q18IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very terrified; 2= terrified; 3= not terrified
staic_c1_q19IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very mixed-up; 2= mixed-up ; 3= not mixed-up
staic_c1_q20IntegerRecommendedForm C-1. I feel right now at the very moment1::31=very cheerful; 2= cheerful ; 3= not cheerful
staic_c2_q1IntegerRecommendedForm C-2. I worry about making mistakes1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q2IntegerRecommendedForm C-2. I feel like crying1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q3IntegerRecommendedForm C-2. I feel unhappy.1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q4IntegerRecommendedForm C-2. I have trouble making up my mind1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q5IntegerRecommendedForm C-2. It is difficult for me to face my problems1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q6IntegerRecommendedForm C-2. I worry too much1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q7IntegerRecommendedForm C-2. I get upset at home1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q8IntegerRecommendedForm C-2. I am shy1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q9IntegerRecommendedForm C-2. I feel troubled1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q10IntegerRecommendedForm C-2. Unimportant thoughts run through my mind and bother me1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q11IntegerRecommendedForm C-2. I worry about school1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q12IntegerRecommendedForm C-2. I have trouble deciding what to do1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q13IntegerRecommendedForm C-2. I notice my heart beats fast1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q14IntegerRecommendedForm C-2. I am secretly afraid1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q15IntegerRecommendedForm C-2. I worry about my parents1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q16IntegerRecommendedForm C-2. My hands get sweaty1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q17IntegerRecommendedForm C-2. I worry about things that may happen1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q18IntegerRecommendedForm C-2. It is hard for me to fall asleep at night1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q19IntegerRecommendedForm C-2. I get a funny feeling in my stomach1::31=hardly-ever; 2=sometimes ; 3= often
staic_c2_q20IntegerRecommendedForm C-2. I worry about what others think of me1::31=hardly-ever; 2=sometimes ; 3= often
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: staic01 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.