Research
Energy balance
The 2-year test-retest correlation for activity was 0.59 for the representative sample and 0.39 for the African-American sample.
The questionnaire can be reliably used to assess physical activity in these populations.
StrongSupportsmedium confidence
The 2-year test-retest correlation for activity was 0.59 for the representative sample (n = 147) and 0.39 for the African-American sample (n = 84).
Why this rating
Based on the study design involving a representative sample and test-retest methodology.
Source
Reproducibility and Validity of a Self-Administered Physical Activity Questionnaire
Anne Wolf et al. · International Journal of Epidemiology · 1994
DOI 10.1093/ije/23.5.991
cohort · n=231Cited 1,036×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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