To examine whether depression is stable or changes with age,Dr.Bleu followed a group of children from age 8 to age 40.This is an example of a __________ design.

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Longitudinal design involves following the same group of individuals over a period of time, which is exactly what Dr. Bleu did in this example. This design is useful for examining how characteristics or behaviors change over the lifespan. Cross-sectional design involves comparing different groups of individuals at the same point in time, while sequential design involves a combination of longitudinal and cross-sectional designs. Correlational design involves examining the relationship between variables, but it does not involve following individuals over time.

To Examine Whether Depression Is Stable or Changes with Age,Dr