Statistical approaches for assessing the relative validity of a food-frequency questionnaire: use of correlation coefficients and the kappa statistic

Objective: To compare different statistical methods for assessing the relative validity of a self-administered, 150-item, semi-quantitative food-frequency questionnaire (FFQ) with 4-day weighed diet records (WR). Design: Subjects completed the Scottish Collaborative Group FFQ and carried out a 4-day...

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Veröffentlicht in:	Public health nutrition 2003-06, Vol.6 (3), p.313-321
Hauptverfasser:	Masson, LF, MCNeill, G, Tomany, JO, Simpson, JA, Peace, HS, Wei, L, Grubb, DA, Bolton-Smith, C
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult correlation Correlation coefficient Correlation coefficients Diet Records Diet Surveys Dietary assessment Epidemiological methods epidemiological studies Feeding Behavior Female food frequency questionnaires Food-frequency questionnaire Humans Kappa statistic Male men Middle Aged nutrient intake Nutrients Nutrition Assessment Relative validity Reproducibility of Results Scotland Sex Factors Statistical methods Statistics, Nonparametric Surveys and Questionnaires - standards Weighed diet records women
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