NDA Help Center

Login Dialog

Frequently Asked Questions


NDA Help Center

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



Reset Password

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.

Warning Notice

This is a U.S. Government computer system, which may be accessed and used only for authorized Government business by authorized personnel. Unauthorized access or use of this computer system may subject violators to criminal, civil, and/or administrative action. All information on this computer system may be intercepted, recorded, read, copied, and disclosed by and to authorized personnel for official purposes, including criminal investigations. Such information includes sensitive data encrypted to comply with confidentiality and privacy requirements. Access or use of this computer system by any person, whether authorized or unauthorized, constitutes consent to these terms. There is no right of privacy in this system.

Update Password

You have logged in with a temporary password. Please update your password. Passwords must contain 8 or more characters and must contain at least 3 of the following types of characters:

  • Uppercase
  • Lowercase
  • Numbers
  • Special Characters limited to: %,_,!,@,#,$,-,%,&,+,=,),(,*,^,:,;

Subscribe to our mailing list

Mailing List(s)
Email Format

You are now leaving the NIMH Data Archive (NDA) web site to go to:

Click on the address above if the page does not change within 10 seconds.


NDA is not responsible for the content of this external site and does not monitor other web sites for accuracy.

Accept Terms
Filter Cart
No filters selected
Value Range
Data Structures with shared data
No filters have been selected
Switch User

Dimensional Change Card Sort Test (DCCS)



​NIH Toolbox Dimensional Change Card Sort Test (DCCS)

Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*guid
src_subject_idString20RequiredSubject ID how it's defined in lab/projectasd_child_id
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired fieldnihtbx_cardsort_date
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.ccc2_interview_age
sexString20RequiredSex of the subjectM;FM = Male; F = Femalegender, sex
comments_miscString4,000RecommendedMiscellaneous comments on study, interview, methodology relevant to this form data
nih_pinString25RecommendedPIN number assigned by the NIH Toolbox
phne_sc_2String40RecommendedWhat is your highest grade completed in school?nih_tb_education_info
ques_gradalbmString255RecommendedLast grade completed -Biological Mothernih_tb_parent_education
nih_dccsmixed_shape_repeat1IntegerRecommendedDCCS Trial 1, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat1
nih_dccsmixed_shape_repeat2IntegerRecommendedDCCS Trial 2, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat2
nih_dccsmixed_shape_repeat3IntegerRecommendedDCCS Trial 3, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat3
nih_dccsmixed_shape_repeat4IntegerRecommendedDCCS Trial 4, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat4
nih_dccsmixed_color_switch5IntegerRecommendedDCCS Trial 5, color trial, switch trial0;10=incorrect 1=correctdccsmixed_color_switch5
nih_dccsmixed_shape_repeat6IntegerRecommendedDCCS Trial 6, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat6
nih_dccsmixed_shape_repeat7IntegerRecommendedDCCS Trial 7, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat7
nih_dccsmixed_shape_repeat8IntegerRecommendedDCCS Trial 8, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat8
nih_dccsmixed_color_switch9IntegerRecommendedDCCS Trial 9, color trial, switch trial0;10=incorrect 1=correctdccsmixed_color_switch9
nih_dccsmixed_shape_repeat10IntegerRecommendedDCCS Trial 10, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat10
nih_dccsmixed_shape_repeat11IntegerRecommendedDCCS Trial 11, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat11
nih_dccsmixed_shape_repeat12IntegerRecommendedDCCS Trial 12, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat12
nih_dccsmixed_shape_repeat13IntegerRecommendedDCCS Trial 13, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat13
nih_dccsmixed_shape_repeat14IntegerRecommendedDCCS Trial 14, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat14
nih_dccsmixed_color_switch15IntegerRecommendedDCCS Trial 15, color trial, switch trial0;10=incorrect 1=correctdccsmixed_color_switch15
nih_dccsmixed_shape_repeat16IntegerRecommendedDCCS Trial 16, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat16
nih_dccsmixed_shape_repeat17IntegerRecommendedDCCS Trial 17, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat17
nih_dccsmixed_color_switch18IntegerRecommendedDCCS Trial 18, color trial, switch trial0;10=incorrect 1=correctdccsmixed_color_switch18
nih_dccsmixed_shape_repeat19IntegerRecommendedDCCS Trial 19, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat19
nih_dccsmixed_shape_repeat20IntegerRecommendedDCCS Trial 20, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat20
nih_dccsmixed_shape_repeat21IntegerRecommendedDCCS Trial 21, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat21
nih_dccsmixed_color_switch22IntegerRecommendedDCCS Trial 22, color trial, switch trial0;10=incorrect 1=correctdccsmixed_color_switch22
nih_dccsmixed_shape_repeat23IntegerRecommendedDCCS Trial 23, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat23
nih_dccsmixed_shape_repeat24IntegerRecommendedDCCS Trial 24, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat24
nih_dccsmixed_shape_repeat25IntegerRecommendedDCCS Trial 25, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat25
nih_dccsmixed_shape_repeat26IntegerRecommendedDCCS Trial 26, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat26
nih_dccsmixed_color_switch27IntegerRecommendedDCCS Trial 27, color trial, switch trial0;10=incorrect 1=correctdccsmixed_color_switch27
nih_dccsmixed_shape_repeat28IntegerRecommendedDCCS Trial 28, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat28
nih_dccsmixed_shape_repeat29IntegerRecommendedDCCS Trial 29, shape trial, repeat trial0;10=incorrect 1=correctdccsmixed_shape_repeat29
nih_dccsmixed_color_switch30IntegerRecommendedDCCS Trial 30, color trial, switch trial0;10=incorrect 1=correctdccsmixed_color_switch30
nih_dccs_rt1IntegerRecommendedDCCS Reaction time (ms) for mixed trial 1
nih_dccs_rt2IntegerRecommendedDCCS Reaction time (ms) for mixed trial 2
nih_dccs_rt3IntegerRecommendedDCCS Reaction time (ms) for mixed trial 3
nih_dccs_rt4IntegerRecommendedDCCS Reaction time (ms) for mixed trial 4
nih_dccs_rt5IntegerRecommendedDCCS Reaction time (ms) for mixed trial 5
nih_dccs_rt6IntegerRecommendedDCCS Reaction time (ms) for mixed trial 6
nih_dccs_rt7IntegerRecommendedDCCS Reaction time (ms) for mixed trial 7
nih_dccs_rt8IntegerRecommendedDCCS Reaction time (ms) for mixed trial 8
nih_dccs_rt9IntegerRecommendedDCCS Reaction time (ms) for mixed trial 9
nih_dccs_rt10IntegerRecommendedDCCS Reaction time (ms) for mixed trial 10
nih_dccs_rt11IntegerRecommendedDCCS Reaction time (ms) for mixed trial 11
nih_dccs_rt12IntegerRecommendedDCCS Reaction time (ms) for mixed trial 12
nih_dccs_rt13IntegerRecommendedDCCS Reaction time (ms) for mixed trial 13
nih_dccs_rt14IntegerRecommendedDCCS Reaction time (ms) for mixed trial 14
nih_dccs_rt15IntegerRecommendedDCCS Reaction time (ms) for mixed trial 15
nih_dccs_rt16IntegerRecommendedDCCS Reaction time (ms) for mixed trial 16
nih_dccs_rt17IntegerRecommendedDCCS Reaction time (ms) for mixed trial 17
nih_dccs_rt18IntegerRecommendedDCCS Reaction time (ms) for mixed trial 18
nih_dccs_rt19IntegerRecommendedDCCS Reaction time (ms) for mixed trial 19
nih_dccs_rt20IntegerRecommendedDCCS Reaction time (ms) for mixed trial 20
nih_dccs_rt21IntegerRecommendedDCCS Reaction time (ms) for mixed trial 21
nih_dccs_rt22IntegerRecommendedDCCS Reaction time (ms) for mixed trial 22
nih_dccs_rt23IntegerRecommendedDCCS Reaction time (ms) for mixed trial 23
nih_dccs_rt24IntegerRecommendedDCCS Reaction time (ms) for mixed trial 24
nih_dccs_rt25IntegerRecommendedDCCS Reaction time (ms) for mixed trial 25
nih_dccs_rt26IntegerRecommendedDCCS Reaction time (ms) for mixed trial 26
nih_dccs_rt27IntegerRecommendedDCCS Reaction time (ms) for mixed trial 27
nih_dccs_rt28IntegerRecommendedDCCS Reaction time (ms) for mixed trial 28
nih_dccs_rt29IntegerRecommendedDCCS Reaction time (ms) for mixed trial 29
nih_dccs_rt30IntegerRecommendedDCCS Reaction time (ms) for mixed trial 30
nih_dccs_rawIntegerRecommendedDCCS Raw Score0 :: 40;999999=no scorenihtbx_cardsort_rawscore, nihtbx_demo_rescore_rawdccs, rawscore
nih_dccs_computedFloatRecommendedComputed Score for DCCS subtest0 :: 1000;999999=no scorecomputed_score, dccsscore, nihtbx_cardsort_computedscore, nihtbx_demo_rescore_computeddccs, tbx_dccs_score
nih_dccs_unadjustedFloatRecommendedUnadjusted scaled score for DCCS subtest0 :: 200;999999=no scoredimchangeuncscore, nihtbx_cardsort_uncorrected, nihtbx_demo_rescore_uncorrdccs, uncorrected_standard_score
nih_dccs_ageadjustedFloatRecommendedAge Adjusted scaled score for DCCS subtest0 :: 200;999999=no scoreage_corrected_standard_score, dimchangeagecorrscore, nihtbx_cardsort_agecorrected, nihtbx_demo_rescore_agecorrdccs
nih_dccs_natpercFloatRecommendedAge Adjusted National Percentile for DCCS subtest0 :: 100;999999=no scorenihtbx_cardsort_percentile
dccs_condition_orderString15RecommendedThe order in which the tasks are administered (either color or shape first)Color/Shape; Shape/Color
dccs_pre_switchIntegerRecommendedScore out of six from first task (either shape or color based)0 :: 1260
dccs_post_switchIntegerRecommendedScore out of six from second task (either shape or color based)0 :: 1260
dccs_border_taskIntegerRecommendedScore out of six from border task0 :: 1260
tbx_failed_dccsIntegerRecommendedflag for failure of subtest0;10=False; 1=True
tbx_dccs_pre_rtFloatRecommendedpreswitch median reaction time
tbx_dccs_pst_rtFloatRecommendedpostswitch median reaction time
tbx_dccs_d_rtFloatRecommendeddominant stimuli median reaction time
tbx_dccs_nd_rtFloatRecommendednon-dominant stimuli median reaction time
tbx_dccs_mixed_nd_accIntegerRecommendedmixed block, non-dominant accuracy score
tbx_dccs_pre_cueString10Recommendedpreswitch cue
tbx_dccs_pst_cueString10Recommendedpostswitch cue
tbx_dccs_dom_cueString10Recommendeddominant cue score
tbx_dccs_pre_accIntegerRecommendedpreswitch accuracy
tbx_dccs_post_accIntegerRecommendedpostswitch accuracy score
tbx_dccs_mixed_d_accIntegerRecommendedmixed block, dominant accuracy score
tbx_dccs_pre_pFloatRecommendedpreswitch accuracy (percent)
tbx_dccs_post_pFloatRecommendedpostswitch accuracy score (percent)
tbx_dccs_dom_pFloatRecommendedmixed block, dominant accuracy score (percent)
tbx_dccs_ndom_pFloatRecommendedmixed block, non-dominant accuracy score (percent)
dccs_shape_instr1IntegerRecommendedDCCS Shape Instruction Item 10;10=Incorrect; 1=Correct
dccs_shape_instr2IntegerRecommendedDCCS Shape Instruction Item 20;10=Incorrect; 1=Correct
dccs_shape_prac1IntegerRecommendedDCCS Shape Practice Item 10;10=Incorrect; 1=Correct
dccs_shape_prac2IntegerRecommendedDCCS Shape Practice Item 20;10=Incorrect; 1=Correct
dccs_shape_prac3IntegerRecommendedDCCS Shape Practice Item 30;10=Incorrect; 1=Correct
dccs_shape_prac4IntegerRecommendedDCCS Shape Practice Item 40;10=Incorrect; 1=Correct
dccs_shape_prac5IntegerRecommendedDCCS Shape Practice Item 50;10=Incorrect; 1=Correct
dccs_color_instr1IntegerRecommendedDCCS Color Instruction Item 10;10=Incorrect; 1=Correct
dccs_color_instr2IntegerRecommendedDCCS Color Instruction Item 20;10=Incorrect; 1=Correct
dccs_color_prac1IntegerRecommendedDCCS Color Practice Item 10;10=Incorrect; 1=Correct
dccs_color_prac2IntegerRecommendedDCCS Color Practice Item 20;10=Incorrect; 1=Correct
dccs_color_prac3IntegerRecommendedDCCS Color Practice Item 30;10=Incorrect; 1=Correct
dccs_color_prac4IntegerRecommendedDCCS Color Practice Item 40;10=Incorrect; 1=Correct
dccs_color_prac5IntegerRecommendedDCCS Color Practice Item 50;10=Incorrect; 1=Correct
dccs_color_instr9IntegerRecommendedDCCS Color Instruction Item 90;10=Incorrect; 1=Correct
dccs_color_instr10IntegerRecommendedDCCS Color Instruction Item 100;10=Incorrect; 1=Correct
dccs_color_preswitch1IntegerRecommendedDCCS Color Item 1, prior to dimension switch0;10=Incorrect; 1=Correct
dccs_color_preswitch1_tIntegerRecommendedDCCS Color Item 1, prior to dimension switch, response time (ms)
dccs_color_preswitch2IntegerRecommendedDCCS Color Item 2, prior to dimension switch0;10=Incorrect; 1=Correct
dccs_color_preswitch2_tIntegerRecommendedDCCS Color Item 2, prior to dimension switch, response time (ms)
dccs_color_preswitch3IntegerRecommendedDCCS Color Item 3, prior to dimension switch0;10=Incorrect; 1=Correct
dccs_color_preswitch3_tIntegerRecommendedDCCS Color Item 3, prior to dimension switch, response time (ms)
dccs_color_preswitch4IntegerRecommendedDCCS Color Item 4, prior to dimension switch0;10=Incorrect; 1=Correct
dccs_color_preswitch4_tIntegerRecommendedDCCS Color Item 4, prior to dimension switch, response time (ms)
dccs_color_preswitch5IntegerRecommendedDCCS Color Item 5, prior to dimension switch0;10=Incorrect; 1=Correct
dccs_color_preswitch5_tIntegerRecommendedDCCS Color Item 5, prior to dimension switch, response time (ms)
dccs_shape_instr9IntegerRecommendedDCCS Shape Instruction Item 90;10=Incorrect; 1=Correct
dccs_shape_instr10IntegerRecommendedDCCS Shape Instruction Item 100;10=Incorrect; 1=Correct
dccs_shape_postswitch1IntegerRecommendedDCCS Shape Item 1, after dimension switch0;10=Incorrect; 1=Correct
dccs_shape_postswitch1_tIntegerRecommendedDCCS Shape Item 1, after dimension switch, response time (ms)
dccs_shape_postswitch2IntegerRecommendedDCCS Shape Item 2, after dimension switch0;10=Incorrect; 1=Correct
dccs_shape_postswitch2_tIntegerRecommendedDCCS Shape Item 2, after dimension switch, response time (ms)
dccs_shape_postswitch3IntegerRecommendedDCCS Shape Item 3, after dimension switch0;10=Incorrect; 1=Correct
dccs_shape_postswitch3_tIntegerRecommendedDCCS Shape Item 3, after dimension switch, response time (ms)
dccs_shape_postswitch4IntegerRecommendedDCCS Shape Item 4, after dimension switch0;10=Incorrect; 1=Correct
dccs_shape_postswitch4_tIntegerRecommendedDCCS Shape Item 4, after dimension switch, response time (ms)
dccs_shape_postswitch5IntegerRecommendedDCCS Shape Item 5, after dimension switch0;10=Incorrect; 1=Correct
dccs_shape_postswitch5_tIntegerRecommendedDCCS Shape Item 5, after dimension switch, response time (ms)
dccs_shape_instr11IntegerRecommendedDCCS Shape Instruction Item 110;10=Incorrect; 1=Correct
dccs_shape_instr12IntegerRecommendedDCCS Shape Instruction Item 120;10=Incorrect; 1=Correct
dccs_color_instr11IntegerRecommendedDCCS Color Instruction Item 110;10=Incorrect; 1=Correct
dccs_color_instr12IntegerRecommendedDCCS Color Instruction Item 120;10=Incorrect; 1=Correct
dccs_shape_instr5IntegerRecommendedDCCS Shape Instruction Item 50;10=Incorrect; 1=Correct
dccs_shape_instr6IntegerRecommendedDCCS Shape Instruction Item 60;10=Incorrect; 1=Correct
dccs_shape_prac6IntegerRecommendedDCCS Shape Practice Item 60;10=Incorrect; 1=Correct
dccs_shape_prac7IntegerRecommendedDCCS Shape Practice Item 70;10=Incorrect; 1=Correct
dccs_shape_prac8IntegerRecommendedDCCS Shape Practice Item 80;10=Incorrect; 1=Correct
dccs_shape_instr7IntegerRecommendedDCCS Shape Instruction Item 70;10=Incorrect; 1=Correct
dccs_shape_instr8IntegerRecommendedDCCS Shape Instruction Item 80;10=Incorrect; 1=Correct
dccs_shape_prac9IntegerRecommendedDCCS Shape Practice Item 90;10=Incorrect; 1=Correct
dccs_shape_prac10IntegerRecommendedDCCS Shape Practice Item 100;10=Incorrect; 1=Correct
dccs_shape_prac11IntegerRecommendedDCCS Shape Practice Item 110;10=Incorrect; 1=Correct
dccs_shape_prac12IntegerRecommendedDCCS Shape Practice Item 120;10=Incorrect; 1=Correct
dccs_color_instr5IntegerRecommendedDCCS Color Instruction Item 50;10=Incorrect; 1=Correct
dccs_color_instr6IntegerRecommendedDCCS Color Instruction Item 60;10=Incorrect; 1=Correct
dccs_color_prac6IntegerRecommendedDCCS Color Practice Item 60;10=Incorrect; 1=Correct
dccs_color_prac7IntegerRecommendedDCCS Color Practice Item 70;10=Incorrect; 1=Correct
dccs_color_prac8IntegerRecommendedDCCS Color Practice Item 80;10=Incorrect; 1=Correct
dccs_color_instr7IntegerRecommendedDCCS Color Instruction Item 70;10=Incorrect; 1=Correct
dccs_color_instr8IntegerRecommendedDCCS Color Instruction Item 80;10=Incorrect; 1=Correct
dccs_color_prac9IntegerRecommendedDCCS Color Practice Item 90;10=Incorrect; 1=Correct
dccs_color_prac10IntegerRecommendedDCCS Color Practice Item 100;10=Incorrect; 1=Correct
dccs_color_prac11IntegerRecommendedDCCS Color Practice Item 110;10=Incorrect; 1=Correct
dccs_color_prac12IntegerRecommendedDCCS Color Practice Item 120;10=Incorrect; 1=Correct
prob_adminIntegerRecommendedFlagged for potentially problematic test administration11=Flaggedflag_cognition_dccs
overallrtIntegerRecommendedMean reaction time from Flanker congruent and DCCS dominant trials (ms)
accult_select_languageIntegerRecommendedTest given in Spanish? ¿Español?0;10=No; 1=Yesnihtbx_cardsort_language
visitString50RecommendedVisit nameeventname
version_formString100RecommendedForm used/assessment namenihtbx_cardsort_v
wcst_niIntegerRecommendedNumber of Itemsnihtbx_cardsort_itmcnt
nih_tlbx_fctscFloatRecommendedFully-Corrected T-Score0::120dimchangetscore, nihtbx_cardsort_fullycorrected, nihtbx_demo_rescore_fulltdccs
rtFloatRecommendedReaction Timenihtbx_demo_rescore_dccsreactiontime
respondentString20RecommendedRespondentMother;Father;Both; Child; Other; Parent
dodeString10RecommendedDate of Data Entry
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: dccs01 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.