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What is Wear Time Validation History?

Last Updated: Jul 26, 2016 05:55PM CDT

The Wear Time Validation (WTV) History option helps to clarify when and how WTV was performed on a group of datasets.  For ActiLife version 6.6 and later, the "Validated Data" column in both the WTV and Data Scoring tools describes when and how WTV was performed.  There are four possible statuses for datasets.

Validated Data Statuses

  • Yes - WTV has been performed on the given dataset using ActiLife version 6.5.3 or older.  (Newer versions of ActiLife give more details)
  • No - WTV has not been performed on the given dataset.
  • Automatic (<date>) - Automatic WTV has been performed on a file using ActiLife 6.6 or later.  "Automatic" implies that there were no manual modifications made to the WTV results given by ActiLife.  The "date" given represents the date on which WTV was performed.
  • Manual (<date>) - Manual modifications to the WTV results have been made.  That is, after running WTV (i.e., clicking "Calculate" in the WTV tool), the user has clicked on the "Details" button and has elected to include or exclude certain time periods as valid wear periods (shown below)
wear-details.jpg


Modifying WTV Results at a Later Time

Once manual modifications have been made to datasets, the "Validated Data" column will display the "Manual" status followed by the date on which the manual modifications were made.  Once ActiLife is closed, the "Details" button will disappear.  In order to continue to make modifications to those files (i.e., to get the "Details" button back), files marked as "Automatic" must be selected and re-run through the WTV process.  Once the WTV process has been recalculated, the "Details" button will reappear, thus allowing the user to manually modify the WTV results.  ActiGraph is working to persist WTV calculations from session-to-session, thus preventing users from being forced to remember their WTV parameters and recalculating the WTV results each time.  At this time, however, this is not available.


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