7. Dr. Jones wants to test the hypothesis that being with one’s own in-group (as opposed to being in the company of out-group members) increases the likelihood that one will express having racial prejudices. To test this hypothesis, Dr. Jones interviews White participants in the presence of White confederates and Black participants in the presence of Hispanic confederates. In conducting this study, Dr. Jones has inadvertently introduced a confounding variable into his study. What is it?

a. Participant race

b. Confederate race

c. Experimenter race

d. There are no confounds in this study