Describe the research method used and the findings, and then critiquing the approach taken by the authors by considering why they used a particular method.

You are required to review three research studies, describing the research method used and the findings, and then critiquing the approach taken by the authors by considering why they used a particular method.
The structure as below:
Study 1 – Summarise the research undertaken by the authors, critically appraise the research design” (approx. 200 words)
Study 2 – Summarise the research undertaken by the authors, critically appraise the research design (approx. 200 words)
Study 3 – summarise the research undertaken by the authors, critically appraise the research design (approx. 200 words)