Exclude Items From Analysis
Exclude Items From Analysis can be used to exclude items from one or more analysis sequences in a request. This feature can be used if the request status is Generated, Unresolved, or Run Error. If request status is NOT Unresolved, Generated, or Run Error, 'Exclude Items From Analysis' in the Customization tab will display with the grid in view mode, if applicable.
Analysis Type exclusions:
- Summary Statistics: Analysis sequences with this analysis type will be ignored and are NA since they do not include item level statistics.
- Item Analysis - Classical: Items will be excluded from the LICs specified.
- Item Analysis - Differential Item Functioning: Items will be excluded from the LICs specified.
- Item Response Theory - Calibration: Items will be excluded from the LICs specified.
- Item Response Theory - TBLT: Items will be excluded from the common items.
- Item Response Theory - Equate: Items will be excluded from the LICs specified.
To exclude items from analysis:
A CSV file needs to be imported with a list of items to exclude and the analysis sequences to exclude them from. The file must meet the validation rules, otherwise there will be an error message with the validation failures and no items will be excluded until the file is fixed.
- CSV format
- The file should be saved as "CSV (Comma delimited)". Saving the file to a different comma delimited extension, such as "CSV UTF-8 (Comma delimited)" may result in errors when importing.
- Required header fields: Seq, Item
- Seq
- Must be populated.
- If the item(s) should be excluded from all analysis sequences then an asterisk * can be used, rather than specifying each analysis sequence number/Item in the file.
- If a sequence number is included in the file with rows that have Seq=*, then the item exclusion list will be additive, but will resolve to a unique list of items by analysis sequence.
- Sequence numbers specified for Summary Statistic analyses will be ignored.
- Item
- Must be populated with the item identifier that should be excluded for the sequence number specified.
- File should contain only one seq/item per row.
- If there are duplicate seq/item rows, data will be resolved and only the unique list of items per sequence will be excluded.
- Note: File may contain other information or columns, however it must contain 'Seq' and 'Item' headers.
- Seq
Example file excluding items from specific analysis sequences
Under the Exclude Items From Analysis menu:
- Expand the Exclude Items From Analysis menu.
- There will be a table summarizing the analysis sequence number, analysis type, analysis template, and LICs for the request.
- Select the Import Items to Exclude button.
- Select your file, then the Open button.
- If the import is successful:
- A banner message will display at top of the page that says 'Import was Successful'.
- The Items Excluded column will be populated with the number of items excluded and the Item Identifier columns will be populated with the list of excluded items.
- The button to Remove All Exclusions is enabled.
- If the import fails, an error modal will display with the validation errors.
- Note: After a successful import, selecting to import another file will be additive to the existing exclusions. If you do not want it to be additive, then first Remove All Exclusions and import the file.
To remove excluded items:
- Expand the 'Exclude Items From Analysis' menu.
- Select the Remove All Exclusions button.
- A banner message will display at top of the page that says, 'Remove Exclusions Successful'.
- Data will be removed from the Items Excluded and Item Identifier columns in the table.
