What kind of sampling strategy was employed? Did they describe how they obtained (recruited) the sample in detail?

B. Is the sampling design likely to yield a representative sample?

C.What, if any, inclusion/exclusion criteria were used?

D.Did the scientists conduct a power analysis? If so, how many subjects were needed, and did the researchers get the right number?

E.Was the number of subjects sufficient if no power analysis was performed, given the type of design and number of variables?

F.Did the researchers indicate the response rate if a questionnaire was sent to subjects to fill out? How does the rate influence the results?

G. What are the characteristics of the study’s sample group?

H.Can the findings be generalized to what population?