John conducted an experiment to test the effectiveness of a smoking cessation program. The experiment took place over a one-month time period. Subjects in the control group and the experimental group (those who participated in the smoking cessation program) recorded the number of cigarettes that they smoked each day. John was unaware that "national stop-smoking week" also happened to take place
during the one-month time period of his experiment. John's experiment is now confounded by:
a. maturation.
b. history.
c. regression to the mean.
d. mortality.
b
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When studying heritability in humans, an ethical behavior geneticist would be LEAST likely to
a. study identical twins reared apart. b. compare the behavior of adopted children to their biological parents. c. conduct a selective breeding experiment. d. investigate the relationship between behaviors of unrelated siblings (step family members).
Using a male and female condom together is a good way to offer double protection during sexual intercourse
a. True b. False Indicate whether the statement is true or false
According to Freud's view of the dynamics of one's personality, which of the following statements is FALSE?
a. Freud theorized a delicate balance of power among the three structures of the personality. b. According to Freud, internal struggles and rechanneled energies typify most personality functioning. c. Freud saw the superego caught in the middle between the desires of the id and ego. d. Many people resort to the use of defense mechanisms to lessen the anxieties caused by the conflicts of the personality structures.
Justin is a medical student. Compared with carrying out a simple movement like tapping his foot, performing precise and complicated movements during surgery will require Justin to make greater use of his a. premotor cortex
b. tectospinal tract c. cerebellum. d. subthalamic nucleus.