An important element in succeeding in a research method question is the ability to apply examples to back up the point you are making.
What type of question?
On paper 1 and Paper 3 you COULD be asked for strengths and weaknesses of a method (as a 10 mark question) or to evaluate the use of a method in sociological research (as a 20 mark).
Here is a link to a handy summary sheet of possible studies and the method they used. https://drive.google.com/open?id=10UxOqBZgNrlHbtdtYtY1viZ-2iveHU3j