A research consumer should evaluate sample size in a research report by doing what?

a. By asking how many assistants were involved in data collection
b. By asking how representative the sample is relative to the target population
c. By asking how great the outcome difference is between or among study groups
d. By asking how many previous studies the researcher has conducted on similar topics


ANS: B

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A The number of data collectors is not of critical importance for research report evaluation.
B A major factor to be evaluated about sample size is how representative of the population the sample is.
C Outcome differences would have greater impact on later research but not on the current study.
D Researcher expertise should not determine sample size.

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