Literature Review Vs. Systematic Review: Key Differences Explained

Feature Literature Review Systematic Review

PurposeProvides an overview and synthesis of existing researchAnswers a specific research question with rigorous methodologyScopeBroad and selectiveFocused and comprehensiveMethodologyNarrative, subjectivePredefined, objectiveData SourcesSelected by the researcherSystematically searched across multiple databasesBias ControlHigh, due to subjective selectionLow, due to standardized selection processOutcomeTheoretical synthesisEvidence-based conclusions

When to Use Each Review Type

Choosing between a literature review and a systematic review depends on the research goal:

• Use a Literature Review when exploring a broad topic, summarizing existing theories, or establishing a conceptual framework.

• Use a Systematic Review when answering a specific research question, synthesizing multiple studies, or conducting evidence-based analysis.

Challenges in Conducting Reviews

Challenges in Literature Reviews

• Selection Bias: The researcher's personal preferences may influence the selection of studies.

• Lack of Standardization: No strict methodological approach, leading to variations in quality.

• Overgeneralization: Summaries may lack depth due to the broad scope.

Challenges in Systematic Reviews

• Time-Consuming: The comprehensive search and data analysis require significant time and effort.

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