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Filter Cart

The Filter Cart provides a powerful way to query and access data for which you may be interested.  

A few points related to the filter cart are important to understand with the NDA Query/Filter implementation: 

First, the filter cart is populated asyncronously.  So, when you run a query, it may take a moment to populate but this will happen in the background so you can define other queries during this time.  

When you are adding your first filter, all data associated with your query will be added to the filter cart (whether it be a collection, a concept, a study, a data structure/elment or subjects). Not all data structures or collections will necessarily be displayed.  For example, if you select the NDA imaging structure image03, and further restrict that query to scan_type fMRI, only fMRI images will appear and only the image03 structure will be shown.  To see other data structures, select "Find All Subject Data" which will query all data for those subjects. When a secord or third filter is applied, an AND condition is used.  A subject must exist in all filters.  If the subject does not appear in any one filter, that subjects data will not be included in your filter cart. If that happens, clear your filter cart, and start over.  

It is best to package more data than you need and access those data using other tools, independent of the NDA (e.g. miNDAR snapshot), to limit the data selected.  If you have any questions on data access, are interested in using avaialble web services, or need help accessing data, please contact us for assistance.  

Frequently Asked Questions



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NDA provides a single access to de-identified autism research data. For permission to download data, you will need an NDA account with approved access to NDA or a connected repository (AGRE, IAN, or the ATP). For NDA 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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Data Structures with shared data
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Effort-Expenditure for Reward Task

2,927 Shared Subjects

In lab and fMRI version or the task
Clinical Assessments
Task Based
View Change History
Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY Required field effortdt
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0 :: 1260 Age 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.
sex String 20 Required Sex of the subject M;F M = Male; F = Female gender
Query total_hard_choice Float Required Percentage of hard choice selection hard_overall, prphdtsk
Query reward_sensitivity_beta Float Required Beta value for reward sensitivity. Reward magnitud (RM_beta) 999 = Missing sens_beta
Query comprate Float Recommended Complete rate
Query trial Integer Recommended Trial number 0::400; -777; -999 1 = first; 2= second; 3=third; 4=fourth; 5=fifth; 6=sixth; etc; -777=NA, -999=missing trialnumber
Query choice_88 Float Recommended Percentage of hard choice selection during 88% winning probability condition hard_hi
Query choice_50 Float Recommended Percentage of hard choice selection during 50% winning probability condition hard_med
Query choice_12 Float Recommended Percentage of hard choice selection during 12% winning probability condition hard_lo
Query ne_20 Float Recommended % non-effortful choice at effort level 20
Query e_20 Float Recommended % effortful choice at effort level 20
Query ne_50 Float Recommended % non-effortful choice at effort level 50
Query e_50 Float Recommended % effortful choice at effort level 50
Query ne_80 Float Recommended % non-effortful choice at effort level 80
Query e_80 Float Recommended % effortful choice at effort level 80
Query ne_100 Float Recommended % non-effortful choice at effort level 100
Query e_100 Float Recommended % effortful choice at effort level 100
Query rt Float Recommended Reaction Time rt_total
Query timeout Float Recommended number of timeouts
Query post_hard Float Recommended total hard choice for postscan
Query post_switch Float Recommended number of choices switched
Query post_comp Float Recommended % completed complete_total
Query perc_to Integer Recommended % timeout 0;1; -99 -99=missing
data_file1 File Recommended Data file 1
Query eefrt_pe_1 Integer Recommended # of taps in 7 seconds Practice trial, used to determine target score
Query eefrt_ph_2 Integer Recommended # of taps in 21 seconds Practice trial, used to determine target score
Query eefrt_targetscore_e Float Recommended Target score for 7-second trials
Query eefrt_targetscore_h Float Recommended Target score for 21-second trials
Query eefrt_01_condition String 1 Recommended Subject chooses to complete a hard task or an easy task. E;H E = Easy; H = Hard
Query eefrt_01_taps Integer Recommended # of taps recorded during H or E condition
Query eefrt_01_target Integer Recommended Was the target score met? Was this trial paid or unpaid? 1::4 1 = Target score met, paid trial. 2 = target score met, not a paid trial. No_p: Target score not met, paid trial. No_np:Target score not met, not a paid trial.
Query dode String 10 Recommended Date of Data Entry
Query aescode Integer Recommended Staff code number of person completing this form
comments_misc String 4,000 Recommended Miscellaneous comments on study, interview, methodology relevant to this form data
version_form String 100 Recommended Form used/assessment name
Query pupil_record Integer Recommended Was the pupil recorded in this trial? 0;1 0 = No; 1 = Yes
visit String 50 Recommended Visit name
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.