To determine whether shy children become shy adults,Dr.Mulvaney followed a group of participants from age 5 to age 25.This is an example of a __________ design.

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A longitudinal design follows the same group of participants over time, which is exactly what Dr. Mulvaney did in this study. Therefore, a longitudinal design is the best choice. Cross-sectional designs compare different groups at a single point in time, sequential designs combine longitudinal and cross-sectional approaches, and correlational designs examine the relationship between variables but do not involve following a group of participants over time.

To Determine Whether Shy Children Become Shy Adults,Dr