While waiting for his car to be fixed, John was suddenly overcome by an intense fear he has never experienced before. His heart was racing so fast he wondered if he was having a heart attack. John's symptoms are most consistent with a diagnosis of
a) fugue.
b) dysthymia.
c) panic disorder.
d) depersonalization.
c
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Elder adults may exhibit behavioral slowing because of
a. erratic neural firing. b. age-related decline in crystallized intelligence. c. lack of plasticity and adaptive reorganization in brain function. d. learned cautiousness to avoid making mistakes.
When the direction of difference between the sample mean and the population mean is not specified, a two-tailed test is appropriate
Indicate whether the statement is true or false
On a newly-developed IQ test, an individual scores at the 110 level on the first half of the test, and 150 on the second half of the test. What does this test appear to lack?
A) Reliability B) Standardization Incorrect. The test lacks reliability because the scores were so different. C) Predictive validity D) Appropriate norms
You notice your grandparents, who are in their 80s, seem to look smaller than they did in the home movies you have been watching. Your cousin disagrees and says it is an illusion. How would a developmental psychologist settle your disagreement?
a) The observation is not an illusion; the spinal column actually shrinks in late adulthood. b) The observation is an illusion, which can be explained by the Gestalt principle of good continuation. c) The observation is not an illusion; however, it is the result of differences in the diets of elderly and young people. d) The observation is not accurate; perceived height among the elderly is a function of the individuals who are standing around them.