Nomenclature of personal activities of daily living (EPA)

Assign a 3-digit code to the primary activities (“what were you doing?”) and secondary activities (“what else were you doing?”) that respondents engage in during the day. To do this, the 24 hours of the day are divided into 144 time slots of 10 minutes each. Information on primary and secondary activities is supplemented by other classifications that describe location (where time is spent, including modes of transportation) and describe "who" time is spent with.