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Home >> Where can I find documentation for the Sadeh and Cole Kripke algorithms?

Where can I find documentation for the Sadeh and Cole Kripke algorithms?

Last Updated: Feb 08, 2012
Views: 777
There are two algorithms available in the Sleep Scoring tool to users.  Both algorithms score individual epochs as either sleep or non-sleep.  Based on the results of the algorithm, ActiLife is able to discern Sleep Onset, Latency, Total Sleep Time (TST), Wake after Sleep Onset (WASO), Number of Awakenings, and Efficiency.
 
The Sadeh algorithm was derived from fundamental research performed by Avi Sadeh, Katherine Sharkey, and Mary Carskadon entitled Activity Based Sleep-Wake Identification: An Empirical Test of Methodological Issues.  This paper is available on ActiGraph's research database here.  This algorithm is primarily used for younger adolescents as most of the research was performed on children and young adults.
 
The Cole Kripke algorithm was derived from research performed by Roger Cole, and Daniel Kripke in the technical note Automatic Sleep/Wake Identification from Wrist Actigraphy.  This paper is also available on ActiGraph's research database here.  This algorithm is primarly used to score adult populations.


This FAQ Applies To:

  • GT1M Device

  • GT3X Device

  • GT3X+ Device

  • ActiTrainer Device

  • ActiLife Software

  • ActiLife6 Software

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