Which of the following can increase response rate for a survey?
a. re-contacting respondents
b. providing incentives
c. changing samples
d. calling cell phones
e. both re-contacting respondents and providing incentives
e
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When a number of individuals occupy the same relative economic rank, they form
a. a system of stratification. b. a social class. c. an estate. d. a caste.
The scientific study of the size, growth, and composition of the human population:
A) demography B) population studies C) human ecology D) general ecology
Foradultdevelopmentandagingresearch,themostimportantelementsofthelimbicsystemarethe
A. prefrontalandfrontalcortex. B. corpuscallosumandcerebellum. C. corpuscallosumandfrontalcortex. D. amygdalaandhippocampus.
Which of the following technologies is recognized as the primary engine behind the communications revolution of the nineteenth century?
a. the telephone b. the telegraph c. radio d. trans-Atlantic mail