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Physical Activity: Improving Assessment Methods
We also conduct and support methodologic research to evaluate and improve physical
activity assessment. For example:
- We are conducting cognitive research to better understand the information respondents
provide when asked about their physical activity. We are exploring cultural differences in
how concepts such as "leisure time," "vigorous activity," and "moderate activity" are
interpreted.
- We are supporting research in the ongoing Coronary Artery Risk Development in
Young Adults (CARDIA) cohort to determine whether it is feasible to assess physical
activity retrospectively over long time spans. Results from the CARDIA ancillary study
will provide information on how well respondents can provide information about their
physical activity in the distant past. We will also learn whether certain factors predict
an individual's ability to provide a reliable report.
- We developed the Standardized
Surveys of Walking & Bicycling Database. This database contains survey questions
and a list of validation studies for standardized survey questions concerning walking and
biking from multiple national and international physical activity surveys and
questionnaires (PAQs). The database provides easy access to a large number of questions
assessing duration and frequency of walking and bicycling in the non-disabled adult
population.
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