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.

Question

The study design for this experiment is called a(n):

A. randomized block design
B. matched pairs design
C. completely randomized design
D. simple random sample design

Answer 1

C. completely randomized design