Review articles give you an overview of your topic on the current state of the research. Review Articles explain:
This information is based Review Articles - Finding Journal Articles 101.
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Research design is how you will answer your question. It's a plan to answer your research question. A research method is your strategy used to implement that plan. These ideas are closely related but research design ensures you will answer your research question more effectively.
It depends on your research and the data you are trying to collect. Common research methods used are:
The step is where you discuss your research in an objective, factual way. You are communicating factual information about your topic based on the evidence you found in articles, books, and media backed by data you have collected. Use the active voice as much as possible (e.g., achieved, improved, report, etc.)