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Kendra Cherry

Longitudinal Research - Psychology Definition of the Week

By May 27, 2011

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longitudinal studies

Definition: Longitudinal research is an observational technique that involves studying the same group of individuals over an extended period of time. Data is first collected at the outset of the study, and may then be gathered repeatedly throughout the length of the study. In some cases, longitudinal studies can last several decades. Read more...

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