A researcher hypothesized that the drug amphetamine (a stimulant) improves learning
She explains her hypothesis to her participants and gives experimental group participants an amphetamine pill before they begin studying. Control group members get nothing. Later, she assesses how much each participant learned. Because of the hypothesis explanation and because the experimental group was given a pill that the other group did not receive, the experimental group will most likely expect to learn more. Thus, any observed differences between groups may reflect differences in expectation, not the actual effect of the drug, a problem known as the
a. anthropomorphic error.
b. research participant bias.
c. courtesy bias.
d. double-blind experimental effect.
ANSWER: b
You might also like to view...
Internal chemical signals that reduce our desire to eat are called:
a. ghrelin signals b. gastrointestinal signals c. satiation signals d. drive reduction signals
The multiaxial system of assessment in the DSM-IV-TR is used to
a. complicate the diagnostic process. b. understand overall functioning that influences recovery and treatment. c. indicate the number of disorders the individual exhibits. d. rank the severity of the disorders the individual exhibits.
A situation in which I am concerned that I may experience a difficult life-threatening illness before I die is an example of
a. death-related attitudes about my own dying b. death-related attitudes about my own death c. death-related attitudes about what will happen to me after my death d. death-related attitudes about the dying, death, or bereavement of someone else e. none of these
According to the article Who's Afraid of the Big Bad Ad? about fear appeals inadvertising, the
dependent variable in the study was (a) content of advertisements (b) owning, or not owning, a stun-gun (c) the intensity of stun-gun shock (d) various questionnaire measures