Esteban Completed a Research Study for Class Credit

Multiple Choice

Esteban completed a research study for class credit. He thought it was odd that he only had to complete a single self-report questionnaire after finding out from some of his classmates that they had to stare at a light before completing the questionnaire. Esteban was most likely in the:

A) placebo group.
B) experimental group.
C) empty control group.
D) baseline group.