THE OBJECTIVITY OF ANTHROPOMETRIC MEASUREMENTS TAKEN ON EIGHT- AND NINE-YEAR-OLD WHITE MALES

Abstract

This study has been developed in such a manner as to constitute a companion paper to one recently completed (2). The earlier paper dealt with the reliability of anthropometric measurements reliability being determined by the differences between initial and repeated observations made by a single anthropometrist. The present study pertains to the objectivity of anthropometric measurements objectivity being considered as a function of like differences when the initial measurements are made by one anthropometrist and repeated observations are taken by a second anthropometrist. It follows, then, that the purpose of this study is in part investigative and in part comparative. On the one hand it attempts to investigate the objectivity of a series of physical measurements made on boys eight and nine years of age, and on the other hand it affords a comparison of the resulting objectivity findings with earlier findings for reliability (2). Specific major aims are: (1) To determine to what extent, if at all, one investigator tends to secure smaller or larger measurements than the other for any given dimension. In question form this aim becomes: Are there systematic differences in the technique of the two anthropometrists? (2) To obtain for each of the fifteen anthropometric dimensions objectivity tables. These tables are to be derived from observations taken under relatively optimum conditions. (3) To relate each objectivity table to the rate of growth for the dimension from which it is derived and to compare the resulting frequency of consecutive measurement estimates with those obtained for reliability (2).

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