Physical Measurement of Young Children: a Study of Anthropometric Reliabilities for Children Three to Six Years of Age , 1941

(1941) Physical Measurement of Young Children: a Study of Anthropometric Reliabilities for Children Three to Six Years of Age , 1941. University of Iowa

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Abstract

Dr. Knott's review of the literature in Chapter II of this volume reveals that, for ages three to six years, a systematic study of the reliability of anthropometric measurements has not been previously undertaken. It is known that this lack of knowledge on reliability has resulted in lessened work efficiency. The present data are based on thirty-five physical measurements for a good sampling of preschool children. Differences in the observations of two technicians are analyzed and, for some measurements, between two observations by the same technician. Of special interest are Dr. Knott's estimates of the approximate frequency of measurement considered profitable during the preschool years: stature, ten times a year; hip, width, sitting height, leg girth, and total arm length, three to four times a year; head, chest depth and elbow width, every two years; and the remaining measurements chiefly once a year. The study, as a whole, forms a unit in the anthropometric program