Dr. Hassan is studying the influence of getting older on intelligence. He tests a group of first graders, a group of third graders, and a group of sixth graders. They are all tested in one day. This is an example of __________ research.
A) cross-sectional
B) longitudinal
C) mixed design
D) fixed effects

Question

Quizplus · Accepted Answer

Cross-sectional research involves testing individuals from different age groups at the same point in time. In this scenario, Dr. Hassan is testing first, third, and sixth graders, who represent different age groups, in one day. Therefore, this is an example of cross-sectional research.

Dr Hassan Is Studying the Influence of Getting Older on Intelligence