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, 30 (3), 260-8

How to Find Nothing

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How to Find Nothing

David Hemenway. J Public Health Policy.

Abstract

Hypothesis testing can be misused and misinterpreted in various ways. Limitations in the research design, for example, can make it almost impossible to reject the null hypothesis that a policy has no effect. This article discusses two examples of such experimental designs and analyses, in which, unfortunately, the researchers touted their null results as strong evidence of no effect.

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