(Scenario III) Suppose the Researchers Who Conducted the Study Described

Multiple Choice

(Scenario III) Suppose the researchers who conducted the study described in Scenario III surveyed participants about their caffeine use. Based on their answers, each participant was then assigned to the caffeine condition or control condition. This method of assignment is best described as:

A) random.
B) nonrandom.
C) matched.
D) pseudo-random.