Shields, Patricia and Rangarjan, N. 2013. A Playbook for Research Methods: Integrating Conceptual Frameworks and Project Management. [1][permanent dead link]. Stillwater, OK: New Forums Press. See Chapter four for an extensive discussion of descriptive research.
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Casula, M., Rangarajan, N. & Shields, P. The potential of working hypotheses for deductive exploratory research. Qual Quant (2020). https://doi.org/10.1007/s11135-020-01072-9