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Cross-Sectional vs. Longitudinal Approaches
Another way of classifying research studies is by considering whether the studies are cross-sectional or longitudinal in nature.
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Clinical Practice of Psychology
Psychology
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OpenStax Psychology (2nd ed.) Textbook
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Cross-Sectional Approaches
Longitudinal Studies
Variations and Problems with Cross-Sectional and Longitudinal Approaches
A developmental psychologist wants to study how problem-solving skills change over the lifespan. The psychologist recruits a group of 20-year-olds, a group of 40-year-olds, and a group of 60-year-olds. All participants are given the same problem-solving test during the same month. Which research design does this study exemplify?