a researcher interested in comparing the personality characteristics of extraversion to introversion follows a cohort of 20 children, from kindergarten through twelfth grade. The research method he is using is longitudinal.
Longitudinal research appoint non-stop or repeated measures to comply with unique individuals over prolonged periods of time—often years or decades.
A longitudinal find out about (or longitudinal survey, or panel study) is a research diagram that entails repeated observations of the same variables (e.g., people) over brief or long intervals of time (i.e., uses longitudinal data).
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