Which of the following is a necessary component of a longitudinal design?
A)Measuring the same variables at two points in time
B)Measuring at least four variables at one time
C)Measuring different age groups at two different times
D)Manipulating a variable at two points in time

Question

Quizplus · Accepted Answer

A longitudinal design involves measuring the same variables at two or more points in time in order to track changes over time. Therefore, measuring the same variables at two points in time is a necessary component of a longitudinal design. The other answer choices do not accurately describe a longitudinal design.

Which of the Following Is a Necessary Component of a Longitudinal