Researchers Who Were Interested in the Effects of Alcohol Consumption

Multiple Choice

Researchers who were interested in the effects of alcohol consumption on perceived attractiveness of members of the opposite sex randomly assigned participants to two groups. Each participant in the first group received a fruit flavored drink containing a set amount of alcohol and those in the second group received an identical tasting drink with no alcohol. Next, the participants viewed pictures of members of the opposite sex and rated their attractiveness on a scale of 1 to 10. Why did the researchers include a group that drank a nonalcoholic beverage that tasted identical to the alcoholic beverage?

A) to encourage practice effects
B) to examine expectancy effects
C) to eliminate random assignment
D) to manipulate demand characteristics