Hagemann, Strauss, and Leißing studied the effects of the color of clothing (red versus blue) in referees' judgments of tae kwan do ability. Referees viewed two sets of 11 videos in random order, and each set was counterbalanced. In effect, Hagemann accomplished
A) complete counterbalancing
B) block randomization
C) both a and b
D) none of the above

Question

Quizplus · Accepted Answer

The study used both complete counterbalancing (by presenting two sets of 11 videos in random order, with each set counterbalanced) and block randomization (by presenting the videos in sets).

Hagemann, Strauss, and Leißing Studied the Effects of the Color