Is it always necessary to start the introduction part of academic research with the discussion of dependent variables?
Since the "introduction" section is the beginning of the write-up and research, I prefer to start off with the discussion of the research problem whereby the research problem might be related / surrounding the dependent variable or some times the independent variables etc. depending on your research objective.
Yes , ofcourse , becoz strongly and clearly written introduction will make the reader and examiners clear about the subject of academic research , thats why every research topic should be started with introduction with key questions of academic research .