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AP® Psychology

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Developmental Milestones

APPSY-E2ZZOL

If a developmental psychologist wanted to focus on the developmental milestones children are supposed​ to reach, at certain ages, which type of study would be the best to conduct?

A

Naturalistic observation.

B

Case study.

C

Longitudinal study.

D

Cross-sectional study.

E

Single-blind study.