Between-subjects is to once as:
A) within-subjects is to none.
B) within-subjects is to multiple.
C) longitudinal is to one.
D) longitudinal is to none.

Question

Quizplus · Accepted Answer

Between-subjects refers to different participants or subjects being tested in each group, while within-subjects refers to the same participants being tested in each group. Therefore, between-subjects is to once as within-subjects is to multiple, as multiple administrations or measurements are taken from each participant in within-subjects designs. Longitudinal refers to studying the same participants over a period of time, and can be used in both between-subject and within-subject designs, but it does not directly relate to the concept of "once" or "multiple".

Between-Subjects Is to Once As