In Crum and Langer's Hotel Experiment, the Participants Were

Multiple Choice

In Crum and Langer's hotel experiment, the participants were:

A) eighty-four female housekeeping staff at seven carefully matched hotels.
B) all undergraduate students in introductory psychology classes at Harvard University.
C) given either ginkgo biloba or a placebo depending on their assigned group.
D) all male employees selected from the administrative staff of seven carefully matched hotels.