Development of the Activity Card Sort-United Kingdom Version (ACS-UK).

The Activity Card Sort (ACS) is a valid and reliable measure of older adults' participation; however, cultural sensitivity issues are a limitation to its application in the United Kingdom. A content validity study was undertaken to identify culturally relevant activity items to be included in a United Kingdom version of the ACS (ACS-UK). For item generation, United Kingdom time-use studies, research related to other ACS versions, and expert opinions were used.