Hello.

I need help identifying quantitative research methods for article Association Between Rotating Night Shift Work and Risk of Coronary Heart Disease Among Women.

Journal: JAMA

Authors: ClineVetter,PhD;ElizabethE.Devore,ScD;LaniR.Wegrzyn,ScD;JenniferMassa,ScD;FrankE.Speizer,MD; IchiroKawachi,MD,ScD;BernardRosner,PhD;MeirJ.Stampfer,MD,DrPH;EvaS.Schernhammer,MD,DrPH

Purpose/Research problem

2a. What is the purpose of the study? Is it clearly identified? Is the research problem important?

2b. Identify the dependent variable(s)

2c. Identify the independent variable(s)

Literature review

3a. Are the cited sources relevant to the study?

3b. Does the literature review offer a balanced critical analysis of the literature?

3c. Are the cited studies recent?

Theoretical framework

4a. Has a conceptual or theoretical framework been identified?

4b. If yes, is the framework adequately described?

Design and procedures

5a. Identify the study design used in this study?

5b. Is the study design appropriate to answer the research question?

5c. What type of sampling design was used?

5d. Was the sample size justified on the basis of a power analysis or other rationale?

5e. Are the inclusion and exclusion criteria clearly identified? What are they?

5f. What measurement tools were used for the dependent variable(s)?

5g. What measurement tools were used for the independent variable(s)?

5h. Were validity and reliability issues discussed?

Ethical considerations

6a. Were the participants fully informed about the nature of the research?

6b. Were the participants protected from harm?

6c. Was ethical permission granted for the study?

Data analysis

7a. What type of data and statistical analysis was undertaken?

7b. Was the statistical analysis appropriate to address the research question?

Results

8. What are the results of the study? Did the results answer the research question(s)?

Discussion

9a. Were the findings linked back to the literature review?

9b. Did the authors identify study limitations? What were they?

9c. Do you think the limitations are serious enough to impact the internal and external validity* of the study?

Overall assessment

10. What is your overall assessment of the study?

Would greatly appreciate your assistance. :)