Volunteers for a human performance study were randomly divided into two groups. The first group had their flexibility measured in the morning after a short meditation session while the second group had their flexibility measured in the afternoon with no previous meditation session. The flexibility scores of the two groups were compared.
In this study, the response variable is:
A) the volunteer's flexibility score.
B) whether the volunteer had a meditation session.
C) the placebo.
D) a lurking variable.

Question

Quizplus · Accepted Answer

The response variable is the characteristic being measured, which is the flexibility score of the volunteers. B is incorrect because whether the volunteer had a meditation session is a predictor variable. C and D are incorrect because placebo and lurking variables are not relevant to this particular study.

Volunteers for a Human Performance Study Were Randomly Divided into Two