Descriptive statistics are procedures used to summarize, organize, and make sense of a set of scores.
Answer the following statement true (T) or false (F)
True
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What is the general conclusion of researchers who have investigated the influence of genetic factors on attention-deficit/hyperactivity disorder?
a. Genetic factors strongly contribute to this disorder. b. The concordance rate for MZ twins is high, but symptoms appear to be reactions to other mental disorders. c. Genetic factors seem to play no role in the development of this disorder. d. The concordance rate among dizygotic twins is higher than it is for monozygotic twins.
Drugs that alter the availability of norepinephrine and serotonin are not clinically effective in the treatment of depression for several weeks. Which of the following does this finding suggest?
A. These neurotransmitters are not involved in depression. B. It is overactivity of these neurotransmitters that underlies depression, not underactivity. C. The effectiveness of antidepressants is a placebo effect, as opposed to the result of a biochemical manipulation. D. Changes in neurotransmitter function, as opposed to neurotransmitter level, cause depression.
The Minnesota Multiphasic Personality Inventory (MMPI) and the Beck Depression Inventory are psychological tests used to get a sense of a person's pain. Patients who are likely to experience chronic pain are likely to score ____________
a. low in the MMPI subscales of hypochondriasis and depression b. high in MMPI subscales of depression and hysteria c. low in the MMPI subscale of hysteria d. low in the neurotic triad
Compared to early childhood, self-evaluations during middle childhood become
A) more realistic. B) unrealistically optimistic. C) more negative. D) more positive.