Research
Energy balance
Most open-ended sections of the questionnaire might be eliminated without material loss of information.
Practitioners can streamline the questionnaire by removing less critical sections.
StrongQualifiesmedium confidence
An evaluation of the incremental contribution provided by several open-ended sections of the questionnaire to the estimation of nutrient intake suggested that in this population most of these items might be eliminated without material loss of information.
Why this rating
The evaluation is based on the study's findings regarding the questionnaire's structure.
Source
THE USE OF A SELF-ADMINISTERED QUESTIONNAIRE TO ASSESS DIET FOUR YEARS IN THE PAST
Walter C. Willett et al. · American Journal of Epidemiology · 1988
DOI 10.1093/oxfordjournals.aje.a114780
other · n=150Cited 802×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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- Correlation coefficients comparing calorie-adjusted nutrient intakes from the questionnaire with those from diet records ranged from 0.28 to 0.62.Strong
- Useful estimates of nutrient intake several years previously can be obtained by a relatively inexpensive, mailed, self-administered questionnaire.Strong
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