BMJ8 个月
The reliability and validity of the physical activity questions in the WHO health behaviour ...
chw.edu.au Objective—To assess the test-retest reliability and validity of the physical activity questions in the World Health Organisation health behaviour in schoolchildren (WHO HBSC) survey.
BMJ5 个月
Reliability and validity testing of a single-item physical activity measure
A quota sampling system was used to recruit 480 adults from across England, Scotland and Wales. Half the sample completed the past-week question and half completed the past-month version. Test–retest ...