Individuals are selected at random for a study from a list of members of Girl Scout troops to represent the population of girls aged 8–13. This sampling is ______.
a. simple random sample
b. stratified random sample
c. haphazard/volunteer sample
d. cluster sample
Ans: D
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A student theorizes that calcium enhances performance on memory tasks. The student will be required to use _______ to test her theory.
A. descriptive statistics B. inferential statistics C. variability D. experiment
According to White, the intrinsic need to deal competently with the environment is called _____ motivation:
a. self-actualization b. effectance c. internal d. efficiency
Research on abuse and corruption complains finds that:
A. these are widespread problems. B. these activities are disproportionally engaged in by a small number of officers. C. these problems are more prevalent now than ever in the past. D. these issues are particularly a problem in the northeast.
What type of memorywas Sperling measuring?
A) iconic B) echoic C) semantic D) procedural