Ian Deary and his colleagues retested 80-year-old Scots,using an intelligence test the Scots had taken as 11-year-olds.The procedure used in this research best illustrates a
A) crystallized study.
B) longitudinal study.
C) cohort study.
D) cross-sectional study.

Question

Quizplus · Accepted Answer

A longitudinal study is one that tracks a group of individuals over an extended period of time. In this case, the researchers retested the same group of individuals 69 years later, using the same intelligence test they took as children. This allows the researchers to observe changes and continuity in intelligence over time.

Ian Deary and His Colleagues Retested 80-Year-Old Scots,using an Intelligence