Which of the characteristics below distinguishes the t statistic from the z statistic?
a. the proportion of area beyond a particular positive t value is equal to the proportion of area below the corresponding negative t
b. the z distribution has a mean of zero while the t distribution does not
c. In the t distribution the area under the curve beyond a value of ±1.96 is greater than that of the normal curve
d. all of these
C
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In DSM-IV-TR, Axis V is used to
a. indicate the presence of personality disorders or mental retardation. b. indicate the presence of clinical disorders other than personality disorders and mental retardation. c. list relevant medical conditions. d. quantitatively estimate an individual's overall level of functioning.
For which of the following types of couples does commitment nearly always come before intimacy and passion?
older remarried couples cohabitating young heterosexual couples couples in arranged marriages cohabitating young homosexual couples
When 4-year-old Allison is encouraged to choose her own outfit to wear to preschool, and allowed to make the decision(s) regarding what to wear from several choices that her mother presents to her, she is likely to develop
a) initiative. b) autonomy. c) self-concept. d) individualistic orientation.
Episodes of confusional arousal are relatively common in adults, and are typically of relatively brief duration
A. while the person is sleepwalking. B. during REM sleep. C. before the person fully awakens. D. while falling asleep.