1, Identify and discuss what is known/not known about the topic and the gap in knowledge the study is intended to fill.
2, Identify and discuss the research design, purpose of the study, and setting.
3, Identify and discuss the following about the sample: method; size; inclusion/exclusion criteria, attrition/loss to follow up/response rate, if any; important characteristics of the sample.
4,Appraise and debate the sampling methods. Consider the following questions:
(A) Was the sampling method and inclusion/exclusion criteria adequate to reduce sampling bias?
(B) Do the sample characteristics representative of the target population?
(C) Was the sample size adequate?
(D) Was there a decrease in sample size? If so, did the researchers identify decreases early and attempt to reduce the impact? Was a decrease, if any, adequately explained by the researchers?
(D) How would you rate the quality of the sampling procedures and your confidence in drawing inferences to the target population?