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) factor analysis.
D) cross-sectional study.

Question

Quizplus · Accepted Answer

The retest of 80-year-old Scots using an intelligence test they took as 11-year-olds is an example of a longitudinal study. A longitudinal study involves retesting a group of individuals over a period of time, often years or even decades, in order to track changes in behavior or characteristics.

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