Explain how the distribution of t-scores differ from the distribution of z-scores.
What will be an ideal response?
Unlike the distribution of z-scores, the shape of the distribution of t scores changes as sample size increases. The larger the sample size, the closer the t value will be to the z-score for that sample. This is due to the use of estimated standard error (from the sample standard deviation) instead of the standard error calculated from a known population.
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Jack is looking for a good support group to help him get through a tough time. If Jack wants the group to have good cohesion, what should he look for?
A. A small group with members who share a lot in common B. A large group where he can have some level of anonymity C. A large group that values competition amongst its members D. A small group that has varied goals for the support they provide
Regarding mood disorders, which of the following statements is FALSE?
a. Extreme mood swings can be as disabling as a serious physical illness. b. Depression can be deadly, because depressed persons may be suicidal. c. In any given year, roughly 9.5 percent of the U.S. population suffers from a mood disorder. d. Two general types of mood disorders are somatoform depression and agitated depression.
More than 80 percent of the neurons contained in the brain are
A. located in the cerebral cortex. B. located in the brain stem. C. are glial cells. D. are unused and represent untapped human potential.
A(n) __________ is formed in long-term memory by organizing information into groups of classes according to common or distinct features
a. eidetic network c. hierarchical structure b. mental classification d. cognitive directory