Professor Kim creates a frequency distribution of exam scores from her class of 300 students. Possible scores on the exam ranged from zero to 100. What should be displayed on the horizontal axis?
A) the number of times each possible score occurred
B) each possible score
C) the mean of the 300 scores
D) the name of each student
B) each possible score
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Which division of the nervous system is working when we experience emotions?
a) nonsympathetic division of the nervous system b) sympathetic division of the nervous system c) parasympathetic division of the somatic nervous system d) central nervous system
Alzheimer's disease is most closely linked to the deterioration of neurons that produce
a. serotonin. b. acetylcholine. c. endorphins. d. norepinephrine.
Professor Wagner is explaining to his subjects the purpose behind the experiment they just participated in, along with a general description of the results. He is engaging in what aspect of a research study?
A) debriefing B) informed consent C) institutional review D) deception
One reason that psychologists abandoned the view of instinct as a universal explanation of human behavior is that
a. Freud's popular theory rejected the importance of instinct. b. there had been little success in generating a list of human instincts. c. the behaviorist influence began to diminish in the 1920s. d. cross-cultural studies found enormous behavioral variation.