Construct validity of the Actiwatch-2 for assessing movement in people with profound intellectual and multiple disabilities

Helena J. M. van Alphen*, A. Waninge, Alexander E. M. G. Minnaert, Wendy J. Post, Annette A. J. van der Putten

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

2 Citaten (Scopus)
57 Downloads (Pure)


Background: Valid measures to assess either small or assisted performed movements of people with profound intellectual and multiple disabilities (PIMD) are required. We analysed the construct validity of the Actiwatch-2 to assess movement in people with PIMD.

Method: Twenty-two persons with PIMD were video recorded while wearing an Actiwatch-2. We used 15s-partial-interval recording to record upper body movement, body position and activity situation. Multilevel analyses were used to evaluate if the Actiwatch-2, based on produced counts, could detect changes in these factors.

Results: The presence versus absence of upper body movement and an activity situation in which participants were involved versus not involved resulted in significantly higher counts, with a large variety in predicted counts between participants. No relationship between body position and counts was found.

Conclusions: The Actiwatch-2 seems able to assess obvious upper body movement in people with PIMD, and whether there is involvement in an activity situation.
Originele taal-2English
Pagina's (van-tot)99-110
Aantal pagina's12
TijdschriftJournal of Applied Research in Intellectual Disabilities
Nummer van het tijdschrift1
Vroegere onlinedatum29-jul-2020
StatusPublished - 17-jan-2021

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