Irwin is testing the same individuals repeatedly over time as part of a research study,whereas Dr.Jenner is comparing the performance of different people of various ages at the same time.Dr.Irwin is using a _________ research design; Dr.Jenner is using a ________ design.
A)cross-sectional; longitudinal
B)longitudinal; cross-sectional
C)longitudinal; simultaneous
D)sequential; cross-sectional

Question

Quizplus · Accepted Answer

Longitudinal research tracks the same people over time.In cross-sectional research,individuals of different ages are compared.

Irwin Is Testing the Same Individuals Repeatedly Over Time as Part