Dr. Tucker wanted to learn how aggressive behavior changed as people aged. He designed a study in which he assessed aggression among a hundred 3-year-olds and then re-assessed aggression among these individuals every three years until the participants were 21-year-olds. Dr. Tucker's research design was cross-sectional.

Question

Quizplus · Accepted Answer

Dr. Tucker's research design is longitudinal, not cross-sectional, because he is tracking the same group of individuals over time. Cross-sectional studies involve assessing different groups of individuals at one point in time, not following the same people over time.

Dr Tucker Wanted to Learn How Aggressive Behavior Changed as People