Among current Native American adults who drink alcohol, the prevalence rate
a. varies a great deal
b. is the same as the general population
c. is lower than the general population
d. has never been measured
a
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Looking at all five sets, which set of classes appears to be made up of a nonrandom sample of students from the Chicago-area schools?
A) A B) B C) C D) D E) E
Which of the following will increase the response rate for a mailed questionnaire?
a. using stamps rather than bulk?printed postage b. including some inducement with the questionnaire c. a carefully prepared cover letter d. all of the answers represent things that will increase the response rate
An instructor of a social work research methods course is lecturing on the limitations of research
designs. She acknowledges that some research designs allow for causal inferences, others shed light on correlations, and that other designs are used to describe social phenomena. Which research design is considered the weakest? a) Time series design b) One-group pretest/posttest design c) Pretest/posttest comparison group design d) Pretest/posttest control group design
Eta2 should be used when the independent variable is interval/ratio and the dependent
variable is categorical. Indicate whether the statement is true or false