Because initial research hypotheses may involve many unknowns at the outset, researchers often need to refine their investigation by doing an exhaustive search of the existing research studies related to their topic of inquiry. This is referred to as what?

Question

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A literature review involves an exhaustive search and evaluation of existing research studies related to a specific topic. This helps researchers refine their investigation and develop more specific research hypotheses. Options B, C, and D are not commonly used terms for this process.

Because Initial Research Hypotheses May Involve Many Unknowns at the Outset