To demonstrate your ability to read and understand scientific research articles
To demonstrate your ability to conduct a literature search related to a topic your have chosen as your research work
To demonstrate that you can develop a new objective, methodology and conduct a small research into the area chosen in relation to articles reviewed or you can write a new paper related to the topic of your choice conceptual paper.
discussion of three article research findings in relation to your topic- what is research gap there
To develop your research ability to do research or do an intervention related to the topic of interest  .
To demonstrate your ability to write a written paper on the research proposal and  discussion, with  limitations and future research