Not a terribly difficult question you'd think. One answer is to read and to see. That's what I ask my research methods students to do. Everything is carefully laid out for them and in addition to the textbook I put up a web page for them also. On the web page is their assignment, which is due on 10 January. Not long now. I have covered research questions, literature reviews, various types of methods, etc. And I have said how the assignment itself carefully states in detail how they are to do it, what they have to do, and how many words it is. I even tell them the font size.
So why am I despairing when I receive an email several days before the deadline that says: "Thanks and appreciate for your help to get knowledge of this module. I would like to know what is literature review? the second question is how many words for this essay in total?"