Explain Longitudinal vs cross-sectional method.
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Explain Longitudinal vs cross-sectional method.
The longitudinal method involves studying the same individuals or group over an extended period to observe changes and developments. It provides insights into the trajectory of behaviors or characteristics over time. In contrast, the cross-sectional method compares different groups at a single point in time, offering a snapshot of a population's characteristics. Longitudinal studies emphasize change within individuals, while cross-sectional studies focus on differences between groups. Both methods are valuable in developmental research, with longitudinal designs capturing growth trends, and cross-sectional designs providing a snapshot for comparative analysis across different age groups or cohorts.