This is a very poorly designed experiment that has many flaws. Please describe 5 of those flaws using appropriate terminology
A researcher was interested in the effects of alcohol on perceptions of physical attractiveness of the opposite sex. To study this, he used students from two of his classes, a senior seminar for psychology majors which met one evening a week from 6 to 9 p.m., and a freshman introductory psychology class, which met two mornings a week at 10 a.m. Because the seniors were all at least 21 and thus legally able to drink, he assigned them all to the condition that received 2 oz. of alcohol mixed in with 6 oz. of orange juice. The freshman were assigned to the “placebo” alcohol condition, in which they received 2 oz. of tonic water (which tastes like alcohol) mixed in with 6 oz. of orange juice. However, they believed that they were really being served alcohol as part of the psychological study.
Students were invited to participate in the study if they had a free hour after their class with the professor. The professor conducted the study on a Thursday, on a day when the introductory class had had an exam. Student drank either the alcohol or the placebo drink, waited 30 minutes in a lounge for the “alcohol” to take effect, and then sat at a computer and performed a five-minute task in which they rated various faces of the opposite sex on physical attractiveness.
The group that had received the alcohol rated the faces as more attractive than the group that did not receive alcohol and the professor concluded that alcohol makes people of the opposite sex appear more attractive.
This is a very poorly designed experiment that has many flaws. Please describe 5 of those flaws using appropriate terminology
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