A research strategy (RS) is a high level plan for answering research questions and solving research problems. Strategies are, ﬁ rst of all, driven by the problem, purposes, and questions of a research project. They also take into account available resources, the conditions of a study, and its time frame. A RS is a script of how to achieve the goals of research in particular conditions with the available resources and within a required time frame. Some research textbooks identify induction, deduction, retroduction and abduction (or sometimes only induction and deduction) as RSs. I called these intellectual processes modes of inference because they are usually not the strategic plans for a particular study, but the patterns of judgments which, together with the metatheoretical paradigms, shape how a researcher should think about generating empirical evidence and then move from this evidence to theoretical conclusions and a solution to the problem.