A study tests the hypothesis that the provision of social work intervention will reduce the school dropout rate. It finds that social work intervention reduces the dropout rate only of children whose families are experiencing high levels of family stress. In this study, what type of variable is “level of family stress”?
a. independent variable.
b. dependent variable.
c. moderating variable.
d. mediating variable.
C
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Every organization should undertake a ______________of its major jobs.
A. goal analysis B. task analysis C. objective analysis D. staff analysis
Medicare covers about ______ percent of the out-of-pocket medical expenses of older people.
a. 10 b. 25 c. 50 d. 80 e. 100
______ is a type of nonrandom sample.
A. Cluster sample B. Snowball sample C. Stratified random sample D. Multistage cluster sample
How do household chores relate to changes in subsistence strategies?
A) Household chores increase with increasing agriculture. B) Household chores decrease with increasing agriculture. C) Household chores increase when shifting from foraging to pastoralism. D) Household chores decrease when shifting from foraging to pastoralism.