Dr. Simpson wants to investigate opinions favoring/opposing federalized healthcare among adults living in
cities ranging from 100,000 and 250,000 people. First, Dr. Simpson randomly selects 10 cities in the U.S.
that have a population between 100,000 and 250,000. Second, he randomly selects 10 census tracts from each
of the 10 cities (a total of 100 census tracts). Third, Dr. Simpson selects two blocks from each census tract (a
total of 200 blocks). Fourth, he randomly selects 5 houses from each block (a total of 1000 households).
What kind of sample is Dr. Simpson using?
A) systematic random sample B) stratified random sample
C) simple random sample D) cluster random sample
D
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Although archaeologists and historians are both interested in the past, how does archaeology differ from history in its approach?
A) Unlike historians, archaeologists only care about the writing systems of non-English speakers. B) Archaeologists dig up dinosaurs, while historians focus on humans. C) Archaeologists only rely on fossil remains from human ancestors. D) Unlike historians, archaeologists study past societies that pre-date written records, using only material remains such as pottery and stone tools.
Funding for Social Security Retirement Benefits comes from
A) the general fund. B) the payroll tax. C) the income tax. D) sales tax.
Single system research can be used for evaluating the effectiveness of
a social worker's practice intervention with all except: A. individual clients. B. families or groups. C. organizations or communities. D. when comparing the differences between two individuals
Most marriage counseling or marital therapy practiced today takes which of the following forms?
a. collaborative b. conjoint c. concurrent d. complementary