The _______ research design compares groups of people at different ages, at one time.

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A cross-sectional research design compares different groups of people at one specific time point, such as comparing people of different ages at a given point in time. Correlational research examines the relationship between two or more variables, experimental research manipulates variables to determine causality, and longitudinal research follows the same group of people over an extended period of time to study developmental changes.

The _______ Research Design Compares Groups of People at Different