Which of the following is not an assumption of the t test for independent groups?
a. The data are interval or ratio
b. The underlying distributions are bell-shaped.
c. The observations are independent.
d. There is not homogeneity of variance.
d
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Research has shown the long-term benefits of meditation to
a. include benefits for physical health but not mental health. b. include benefits for mental health but not physical health. c. include benefits for both physical and mental health. d. be greatly exaggerated by advocates of meditation.
One change in mental activity that occurs during early adolescence is that young people are able to
a. consciously experience changes in the brain. b. generate perceptions based on fantasy principles. c. generate hypotheses about events they have never perceived. d. use motor behavior as the basis of planning activity.
Recent research on the "Big Five" personality factors uses an approach to understanding personality similar to that advocated by
A. Gordon Allport. B. Raymond Cattell. C. Carl Jung. D. Henry Murray.
Authoritarian parents
are affectionate with their children and often praise them. allow children to question their decisions but punish misconduct. seem aloof from their children. make few maturity demands on their children.