A psychologist measures the IQs of 20 students who ingested a "smart pill" and 20 students who ingested a "sugar pill" in order to determine if the pill had an effect on intelligence. To ensure peak performance, she tests all of the students on Wednesdays. In this experiment, the independent variable is the
a. day of the week.
b. pill type.
c. IQ score.
d. sex of the researcher.
b
Psychology
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A major reason why people won't help when there are many bystanders is because:
a. of diffusion of responsibility. b. people are egoistic. c. people like to see others hurt. d. people are not altruistic.
Psychology
Ekman and his colleagues gathered abundant evidence supporting the universality of _______ basic facial expressions of emotion
a. three b. five c. seven d. nine e. eleven
Psychology