can use Research question and hypothesis in Qualitative method , if yes and have articles said that just send me title of articles or book ,,if not and have articles said that just send me title of articles or book..
In qualitative research, you generally have research aims and a number of research questions. Hypothesis is a term most often linked with quantitative research, which is deductive, rather than inductive.
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Whether you are prepared to speak of hypotheses or not is a fundamental matter depending on your philosophical commitments (I am sorry this is not an easy answer). In neo-positivist qualitative research, it is natural to speak of hypotheses and causation. In post-structuralist research, for instance, this is not so uncommon (not to say totally uncommon). A good intro is the second chapter of (even if you are not from political science and international relations): Jackson, Patrick Thaddeus (2010): The Conduct of Inquiry in International Relations: Philosophy of Science and Its Implications for the Study of World Politics London: Taylor & Francis.