The sampling distribution of t differs from the sampling distribution of z in that _________
a. there is only one sampling distribution of z (the normal distribution) for all N, while there are many sampling distributions for t, depending on sample size.
b. the sampling distribution of z is more narrow, except when N equals infinity.
c. the means of the two distributions are different
d. all of these
e. a and b
E
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According to Sternberg, the couple who has been together for years because of their religious and family convictions, despite the lack of passion or intimacy in their relationship, is experiencing companionate love.
a. true b. false
Regression to the mean is most likely to occur
a. when the sample size is small b. in research that studies children c. in posttest-only designs d. when participants are assigned randomly to experimental groups e. when participants are selected because of extreme scores