Someone finds that people's personality at age 20 correlates highly with their personality at age 30.This research must have used which type of design?
A)Single-blind
B)Double-blind
C)Longitudinal
D)Cross-sectional

Question

Someone finds that people's personality at age 20 correlates highly with their personality at age 30.This research must have used which type of design?​
A)Single-blind
B)​Double-blind
C)​Longitudinal
D)​Cross-sectional

Quizplus · Accepted Answer

This research used a longitudinal design because it tracked the same individuals over a period of time to see if there was consistency in personality traits from age 20 to age 30.

Someone Finds That People's Personality at Age 20 Correlates Highly