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- Because even small changes in the design of
physical activity questionnaires may affect their performance, any modified instrument
should be evaluated independently. - Physical
activity questionnaires are culture-specific and their performance will differ according
to the age, gender, culture, as well as the physical activity profile of the study
population. Therefore, when a questionnaire is administered to a population that differs
from the one in which it was developed, it should be evaluated. |
