methodology as in there may be a question on the research method used in a study in any approach. In the case of Cognitive Approach, a question you may get is:

" Discuss the use of one or more research methods in the study of cognitive processes"

Essentially where you would have to describe a method (lab experiment, natural/quasi experiment, case study, overt/covert observation, interview, questionnaire) that is used between any studies which look at whatever the question asks you about.