In a cross-sectional study on moral development, researchers assess 3, 6, and 9-year-olds at a single time point. What is a potential limitation of this approach?

• A. It requires multiple assessments over several years.
• B. It cannot capture individual development over time.
• C. It is prone to high attrition rates.
• D. It is more expensive than longitudinal studies.

Answer: (B)