Infants with a "difficult" temperament are likely to grow up to be difficult children and eventually troubled adults. That statement must be based on evidence from which kind of study?

Question

Quizplus · Accepted Answer

The statement suggests that there is a long-term association between temperament in infancy and later outcomes. Therefore, a longitudinal study that follows individuals over time would be the most appropriate to gather evidence and support this claim. A single-blind or double-blind study would not be appropriate in this case as they are typically used to reduce bias in experimental designs rather than examine associations between variables. A cross-sectional study only measures data at one point in time and cannot examine how individuals change over time.

Infants with a "Difficult" Temperament Are Likely to Grow Up