I'm reading a study with this sentence in it:
I'm having problems understanding this. Are they saying there's a problem with the study?
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Four points will be brought up as the subjects of this research/study.
You could use 課題 here to mean "problem" in the sense of an abstract problem -- i.e., the issues that the research is tackling. It would not be "problem" in the sense of some difficulty in performing/conducting the research.