Research
Energy balance
The simple, short questionnaires on activity and inactivity used in the Nurses' Health Study II are reasonably valid measures for epidemiological research.
Researchers can confidently use these questionnaires in epidemiological studies.
StrongSupportsmedium confidence
The simple, short questionnaires on activity and inactivity used in the Nurses' Health Study II are reasonably valid measures for epidemiological research.
Why this rating
Based on the overall findings and methodology described in the abstract.
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
More from this paper
- The 2-year test-retest correlation for activity was 0.59 for the representative sample and 0.39 for the African-American sample.Strong
- Correlations between activity reported on recalls and that reported on the questionnaire were 0.79 and 0.83 for the representative and African-American samples, respectively.Strong
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