According to the Yerkes-Dodson law, successful performance on a difficult and complex task requires _____
a) no arousal.
b) lower arousal.
c) moderate arousal.
d) higher arousal.
Answer: b
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A parent tends to form a psychological bond with an unborn child, and consequently feel profound grief if the child dies before she or he is born.
Answer the following statement true (T) or false (F)
A ______ sample is one that is easily accessible to the researcher.
A. randomized B. double-blind C. representative D. convenience
We are evaluating a method of therapy for extremely underweight adolescent girls. If we weighed our subjects at the beginning and end of therapy, a difference in weight could mean
a. that our therapy worked. b. that people gain weight over time regardless of what we do. c. that our scales changed due to repeated use. d. all of the above
How does the existence of resilient children impact Freud's theory of psychosexual stages?
a. They support the theory since the children often experience denial. b. They support the theory since the children often become adults with serious psychological problems. c. Resilient children support the theory since they may develop fixation in the psychosexual stages. d. Resilient children are inconsistent with the theory since many develop into healthy adults.