PMID: 2490880Sep 1, 1989Paper

Evaluation of the reliability of anthropometric measures

Archivos latinoamericanos de nutrición
G ParejaH Castro

Abstract

As part of the Early Malnutrition and Its Effects on Youth Project, a study of the reliability of anthropometric measures was carried out through the re-measurement of 226 adolescents of the rural area of Guatemala. In all anthropometric variables, the intra-measure coefficients of reliability were higher than 0.96 and the inter-measure coefficients of reliability higher than 0.91. A significant effect of the measure was found, suggesting the existence of systematic differences among measures. This information will permit corrections by measure effect in the analysis of data. The effect of different grades of "data editing" and "validity, reliability and agreement check", of measures was evaluated. The conclusion was that even though the persons in charge of measurements were trained and supervised, the deletion of values outside ranks did not result in an appreciable decrease of the technical error of measurement. As expected, data editing and validity carried out through the comparison of two measurements taken from each subject and eliminating those whose differences were classified as error according to statistical criteria, decreased the technical error of measurement, in most of the variables measured. Nevertheless, with ...Continue Reading

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