When using an independent-samples t-Test, which of the following is considered when calculating the degrees of freedom?
a. The number of values that are free to vary in each group if we know the mean and sample size of each group.
b. The number of values we would need to know in each group in order to deduce the remaining values, in light of the mean and sample size of each group.
c. Each group's sample size minus 1.
d. When combining both groups, the overall sample size minus 2.
e. All of these.
E
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According to Sharon Wegscheider, a _____ in an alcoholic family is the person who seems rather uninvolved with the rest of the members yet never causes any trouble
A) ?chief enabler B) ?scapegoat C) lost child D) ?mascot
Sampling distributions are important for:
a. descriptive statistics. b. inferential statistics. c. measures of association. d. all of the answers are correct
The text suggests that racial and ethnic minorities sometimes have “rare event” status. This
means that:
a. minorities constitute a relatively small percentage of some populations that are sampled. b. minorities refuse to participate in social science research studies at much higher rates than non?minorities. c. minorities typically show up in samples in disproportionately small numbers compared to their numbers in the population. d. minorities are less likely to show up in snowball samples than in probability samples.
Systemicists changed the direction of family therapy interventions by:
a. questioning family belief systems b. observing family interactive patterns c. taking detailed case histories d. direction