PSYC 1000 Chapter Notes - Chapter Module 18 & 19: Genetic Predisposition, Prenatal Care, Cell Growth
29 Sep 2016
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Cross sectional research: compares groups of different aged people to one another at a single point in time. Longitudinal research: studies the same group of people over a period of time by administering the same tasks or questionnaires and seeing how their responses change as they age. Cohort- sequential research: combines two or more longitudinal l designs, each covering the same spans of time but conducted with different age groups. Advantage: quicker, easier, convenient, yields info about different ages. **cohort effects: the effects of being born at about the same time, exposed to the same events in society, and influenced by the same demographic trends and thus, having similar experiences that make the group unique from other groups. Most likely to be a problem during a cross-sectional study as it is difficult to separate effects of developmental changes from cohort effects when examining age effects across a wide range of ages.
