Anthropometric Field Methods: Criteria for Selection

Since “nutrition” cannot be measured directly, one must rely on measurements of indicators of nutritional status for inferential statements. One such statement addresses the issue of whether or not the nutrition of an individual has changed. This involves examining changes in the measurements of an indicator of nutritional status. In this context the indicator is dealt with as a continuous variable and as such it may also be used to identify differences in nutrition between individuals or groups of individuals. For such purposes one needs answers to the following questions: Does the indicator identify changes or differences in nutrition? Can the sensitivity of the indicator be improved? These concerns are addressed in Sections 2–7.

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