What is the purpose of a literature gap analysis?

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What is the purpose of a literature gap analysis?

A literature gap analysis identifies what hasn’t been explored yet in existing research and why a new study is needed. By surveying current studies, you uncover areas where evidence is sparse, contradictory, or limited to specific populations, settings, outcomes, or methods. Pinpointing these gaps helps you frame a clear rationale and targeted research questions for your new work, ensuring it contributes new knowledge rather than duplicating what’s already known. This process also shapes study design choices and the overall scope, which is essential when proposing a project or applying for funding. It’s not about calculating effect sizes, choosing statistical tests, or summarizing meta-analytic results; those steps come after defining the gap and planning the new study.

A literature gap analysis identifies what hasn’t been explored yet in existing research and why a new study is needed. By surveying current studies, you uncover areas where evidence is sparse, contradictory, or limited to specific populations, settings, outcomes, or methods. Pinpointing these gaps helps you frame a clear rationale and targeted research questions for your new work, ensuring it contributes new knowledge rather than duplicating what’s already known. This process also shapes study design choices and the overall scope, which is essential when proposing a project or applying for funding. It’s not about calculating effect sizes, choosing statistical tests, or summarizing meta-analytic results; those steps come after defining the gap and planning the new study.

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