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Updated: Jul 10, 2026

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
Published on: September 18, 2018
Measurement error in dietary assessment: an investigation using covariance structure models. Part I
1MRC Biostatistics Unit, Institute of Public Health, University Forvie Site, Cambridge, UK.
Abstract:
Repeated measures of diet are analysed in an attempt to discover the measurement error properties of various dietary assessment methods. It is customary in such studies to assume that one reference measurement is 'valid' (without error) but this assumption is not tenable. An alternative approach, widely used in social science, is to model the covariance matrix of the repeated measures. We apply this methodology to assessments of nitrogen intake, which is essentially equivalent to protein intake.
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