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NDA Help Center

Filter Cart

Viewable at the top right of NDA pages, the Filter Cart is a temporary holder for filters and data they select. Filters are added to the Workspace first, before being submitted to The Filter Cart. Data selected by filters in the Filter Cart can be added to a Data Package or an NDA Study from the Data Packaging Page, by clicking the 'Create Data Package / Add Data to Study' button.

The filter cart supports combining multiple filters together, and depending on filter type will use "AND" or "OR" when combining filters.

Multiple selections from the same filter type will result in those selections being applied with an ‘OR’ condition. For example, if you add an NDA Collection Filter with selections for both collections 2112 and 2563 to an empty Workspace, the subjects from NDA Collection 2112 ‘OR’ NDA Collection 2563 will be added to your Workspace even if a subject is in both NDA Collections. You can then add other NDA Collections to your Workspace which further extends the ‘OR’ condition.

If a different filter type is added to your Workspace, or a filter has already been submitted to the Filter Cart, the operation then performs a logical ‘AND’ operation. This means that given the subjects returned from the first filter, only those subjects that matched the first filter are returned by the second filter (i.e., subjects that satisfied both filters).

When combining other filters with the GUID filter, please note the GUID filter should be added last. Otherwise, preselected data may be lost. For example, a predefined filter from Featured Datasets may select a subset of data available for a subject. When combined with a GUID filter for the same subject, the filter cart will contain all data available from that subject, data structure, and dataset; this may be more data than was selected in the predefined filter for that subject. Again, you should add the GUID Filter as the last filter to your cart. This ensures 'AND' logic between filters and will limit results to the subjects, data structures, and datasets already included in your filter cart.

Note that only the subjects specific to your filter will be added to your Filter Cart and only on data shared with the research community. Other data for those same subjects may exist (i.e., within another NDA Collection, associated with a data structure that was not requested in the query, etc.). So, users should select ‘Find all Subjects Data’ to identify all data for those specific subjects.

Additional Tips:

  • You may query the data without an account, but to gain access you will need to create an NDA user account and apply for access. Most data access requires that you or your lab are sponsored by an NIH recognized institution with Federal Wide Assurance (FWA). Without access, you will not be able to obtain individual-level data.

Once you have selected data of interest you can:

  • Create a data package - This allows you to specify format for access/download
  • Assign to Study Cohort - Associate the data to an NDA Study allowing for a DOI to be generated and the data to be linked directly to a finding, publication, or data release.
  • Find All Subject Data - Depending on filter types being used, not all data associated with a subject will be selected. Data may be restricted by data structure, NDA Collection, or outcome variables (e.g., NDA Study). ‘Find All Data’ expands the filter criteria by replacing all filters in your Filter Cart with a single Query by GUID filter for all subjects selected by those filters.

Please Note:

  • When running a query, it may take a moment to populate the Filter Cart. Queries happen in the background so you can define other queries during this time.
  • When you add your first filter, all data associated with your query will be added to the Filter Cart (e.g., a Concept, an NDA Collection, a Data Structure/Element, etc.). As you add additional filters, they will also display in the Filter Cart. Only the name of filter will be shown in the Filter Cart, not the underlying structures.
  • Information about the contents of the Filter Cart can be seen by clicking "Edit”.
  • Once your results appear in the Filter Cart, you can create a data package or assign subjects to a study by selecting the 'Package/Assign to Study' option. You can also 'Edit' or 'Clear' filters.

Frequently Asked Questions

  • What is a Filter Cart?
    Viewable at the top right of NDA pages, the Filter Cart is a temporary holder of data identified by the user, through querying or browsing, as being of some potential interest. The Filter Cart is where you send the data from your Workspace after it has been filtered.
  • What do I do after filters are added to the Filter Cart?
    After filters are added to the Filter Cart, users have options to ‘Create a Package’ for download, ‘Associate to Study Cohort’, or ‘Find All Subject Data’. Selecting ‘Find All Subject Data’ identifies and pulls all data for the subjects into the Filter Cart. Choosing ‘Create a Package’ allows users to package and name their query information for download. Choosing ‘Associate to Study Cohort’ gives users the opportunity to choose the Study Cohort they wish to associate this data.
  • Are there limitations on the amount of data a user can download?

    NDA limits the rate at which individual users can transfer data out of Amazon Web Services (AWS) S3 Object storage to non-AWS internet addresses. All users have a download limit of 20 Terabytes. This limit applies to the volume of data an individual user can transfer within a 30-day window. Only downloads to non-AWS internet addresses will be counted against the limit.

  • How does Filter Cart Boolean logic work?

    The Filter Cart currently employs basic AND/OR Boolean logic. A single filter may contain multiple selections for that filter type, e.g., a single NDA Study filter might contain NDA Study 1 and NDA Study 2. A subject that is in EITHER 1 OR 2 will be returned. Adding multiple filters to the cart, regardless of type, will AND the result of each filter. If NDA Study 1 and NDA Study 2 are added as individual filters, data for a subject will only be selected if the subject is included in BOTH 1 AND 2.

    When combining other filters with the GUID filter, please note the GUID filter should be added last. Otherwise, preselected data may be lost. For example, a predefined filter from Featured Datasets may select a subset of data available for a subject. When combined with a GUID filter for the same subject, the filter cart will contain all data available from that subject, data structure, and dataset; this may be more data than was selected in the predefined filter for that subject. Again, you should add the GUID Filter as the last filter to your cart. This ensures 'AND' logic between filters and will limit results to the subjects, data structures, and datasets already included in your filter cart.


  • Workspace
    The Workspace within the General Query Tool is a holding area where you can review your pending filters prior to adding them to Filter Cart. Therefore, the first step in accessing data is to select one or more items and move it into the Workspace.
  • Filter Cart
    Viewable at the top right of NDA pages, the Filter Cart is a temporary holder of data identified by the user through querying or browsing as being of some potential interest. The Filter Cart adds data using an AND condition. The opportunity to further refine data to determine what will be downloaded or sent to a miNDAR is available on the Data Packaging Page, the next step after the Filter Cart. Subsequent access to data is restricted by User Permission or Privilege; however Filter Cart use is not.
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Classroom Observer Hillside Behavior Ratings

124 Shared Subjects

Clinical Assessments
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
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 subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported gender
Query site String 101 Recommended Site Study Site
stusdy String 40 Recommended Study ID
Query visit String 60 Recommended Visit name
Query cor_i_aorb String 2 Recommended Target Child A;B
Query cor001 Integer Recommended Gross Motor Activity 1::9 1 = Severely under-active. Sits passively, lack of gross motor movement such as walking, running, etc; 2 = Under-active Sluggish, lacks spontaneous motor activity; 3 = Average in gross motor activity. No excessive running, no restlessness, or fidgety behavior; 4 = Somewhat restless. May have movements of the hands, fingers or arms. Does not have excessive gross motor activity such as running, climbing, inability to sit still; 5 = Restless and fidgety. Can sit for appropriate periods of time, but squirms in chair, moves about in the chair, does not sit still; 6 = Very restless and fidgety; 7 = Overactive, but can be controlled. (Has difficulty sitting down. Gets up, but can be brought back; 8 = Very overactive. Very difficult to control. Difficult to get back; 9 = Severely overactive. Cannot be controlled: runs around, climbs, cannot sit for any length of time.
Query adas12 Integer Recommended Concentration/ Distractibility 0::10 0 = none, no evidence of poor concentration or distractibility 1 = very mild, one instance of poor concentration 2 = mild, 2-3 instances of poor concentration/distractibility; signs of restlessness and inattentiveness 3 = moderate, 4-5 instances during interview 4 = moderately severe, poor concentration/distractibility throughout much of interview 5 = severe, extreme difficulty in concentration and extremely distractible, unable to complete tasks; 6 = Is goal-oriented, can maintain interest in tasks; 7 = Slightly distractible, but is goal-oriented and can finish tasks with minimal pressure; 8 = Quite distractible; finishes tasks only with considerable pressure; shows minimal goal-oriented behavior; 9 = Extremely distractible, cannot sustain attention for more than a few seconds, regardless of external pressure; 10 = Never starts or gets involved in anything presented to him and therefore cannot be rated.
Query cor003 Integer Recommended Frustration Tolerance 1::6 1 = Under-reacts to frustrating limit setting. Lack of any reaction; indifferent to limits; 2 = Average reaction to frustration. Can accept setting of limits without showing either indifference, or emotional upset; 3 = Has difficulty relinquishing demands. Persists when wants something; may whine and carry on verbally but no emotional upset; 4 = Exaggerated reaction to frustration, but stops after a short time; may cry, scream, have a brief tantrum; 5 = Exaggerated reaction which continues for extended periods of time (beyond 10 minutes). screaming, crying, tantrums; 6 = Catastrophic reaction to even minor frustrations. Has violent tantrums.
Query cor004 Integer Recommended Cooperation 1::5 1 = Good: follows instructions well and easily, complies without urging; 2 = Fair: complies with a little repetition or urging; 3 = Poor: follows instructions after considerable pressure and intervention by the teacher; 4 = Very Poor: performs only with inordinate amount of pressure, limit setting, and/or threats; 5 = Nil: does not comply no matter how much pressure or urging is exerted.
Query cor005 Integer Recommended Mood 1::6 1 = Child is happy and cheerful; 2 = Child is mostly happy and cheerful, but may briefly appear gloomy; 3 = Child is often gloomy; 4 = Child is mostly gloomy and depressed; 5 = Child is very gloomy and depressed; 6 = Child's mood is neutral (neither happy or sad).
Query psm1atsw Integer Recommended Attitude towards school/work 1::10 1=positive; 2=more positive than negative; 3= more negative than positive; 4= negative; 5 = Child wants to have all his work turn out perfectly. Not easily satisfied with the work he does; e.g.; erases excessively, destroys his work and starts again; 6 = Child is realistic in his evaluation. He changes his productions only when inadequate, can tolerate if not done perfectly; 7 = Child is on the whole realistic, but allows some unwarranted sloppiness; 8 = Child is only occasionally concerned about the quality of his work. Often allows unwarranted sloppiness; 9 = Child is satisfied with poor, inadequate, sloppy work; 10 = Child takes the line of least effort. No concern at all about quality of work.
Query cor007 Integer Recommended Interest in Tasks 1::5 1 = Child is eager to try tasks, is consistently easily stimulated; 2 = On the whole child is eager to try tasks; on occasion loses interest; 3 = Child is interested sometimes only not so much other times; 4 = Child rarely shows interest in tasks; 5 = Child shows no interest in the tasks at all.
Query cor008 Integer Recommended Anxiety About Failure 1::7 1 = Child is very anxious about failure. Never sure of accuracy of response, keeps asking if he's right; 2 = Child is anxious about failure - (asks if he's right more than necessary); 3 = Child has average, normal concern about failure; 4 = Child, for the most part, is normally concerned about failure, on occasion seems uncaring; 5 = Only occasionally shows normal anxiety; on the whole is unconcerned about failure; 6 = Most of the time child is unconcerned about failure, on rare occasions only seems to care; 7 = Child shows no anxiety whatsoever about failure. Could not care less.
Query cor009 Integer Recommended Attention Seeking Devices 1::5 1 = Child never seeks attention through devices similar to the ones described above; 2 = Child rarely seeks attention through these devices; 3 = Child occasionally employs such devices; 4 = Child frequently resorts to such devices; 5 = These devices are practically constant and characterize the manner in which the child behaves.
Query cor010 Integer Recommended Impulse Control 1::5 1 = Child has good control of his impulses. Never acts impulsively; 2 = Child usually has good control of his impulses, but acts impulsively on rare occasions; 3 = Child has some control of his impulses, but at times acts impulsively; 4 = Child has poor control of his impulses and often acts impulsively; 5 = Child is extremely impulsive. He very seldom, if ever, stops to think about the consequences of his actions.
Query cor011 Integer Recommended Initiating Aggressive Behavior with Peers 1::5 1 = Child never, or almost never, initiates aggressive behavior against other children; 2 = Child, on a few occasions initiates aggressive behavior; 3 = Child does above things sometimes, especially if provoked; 4 = Child frequently initiates aggressive behavior; 5 = Child initiates a great deal of aggressive behavior against other children. Typically aggressive in a great deal of his interactions with children.
Query cor012 Integer Recommended Joining Aggressive Activities 1::5 1 = Child never, or almost never joins ongoing aggressive activities like hitting, pushing, teasing, bullying, etc; 2 = Child, on a few occasions, joins aggressive activities; 3 = Child joins such activities at times but not regularly; 4 = Child frequently joins aggressive activities; 5 = Child almost invariably joins ongoing aggressive activities.
Query study String 100 Recommended Study; The code for each individual study
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.