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Validity and reliability: part I.

Deborah Winders Davis
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Abstract

Internal and external validity of a study determine the generalizability of its findings. Measurement reliability and validity, which also have an impact on the overall validity of the study, will be discussed in the next column. Although the concepts have been pulled apart for this discussion, all of these factors influence the overall confidence with which researchers can say that they have measured what was intended and that the findings can be applied to a larger population of individuals.

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Deborah Winders Davis. Validity and reliability: part I.. https://doi.org/10.1891/0730-0832.23.1.54

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