Systematic review is characterized by?

Systematic review is characterized by?

• A. A comprehensive summary without explicit methods
• B. Uses explicit methods to systematically search, identify, appraise, and summarize all literature on a specific issue
• C. Randomized trials only
• D. Focuses on a single study

Answer: (B)

Systematic reviews are defined by explicit, prespecified methods that guide how the literature is searched, identified, appraised for quality, and synthesized. This approach aims to locate all relevant studies on a specific issue, apply transparent criteria for including or excluding studies, critically assess risk of bias, and summarize findings in a way that others can reproduce. That makes this option the best fit. The idea that randomized trials only would limit evidence to a narrow type of study, or that focusing on a single study ignores the broader body of research, or that a comprehensive summary without explicit methods would be biased and non-reproducible, all miss the core practice of using explicit, systematic procedures to gather and evaluate all pertinent evidence.

Systematic reviews are defined by explicit, prespecified methods that guide how the literature is searched, identified, appraised for quality, and synthesized. This approach aims to locate all relevant studies on a specific issue, apply transparent criteria for including or excluding studies, critically assess risk of bias, and summarize findings in a way that others can reproduce. That makes this option the best fit. The idea that randomized trials only would limit evidence to a narrow type of study, or that focusing on a single study ignores the broader body of research, or that a comprehensive summary without explicit methods would be biased and non-reproducible, all miss the core practice of using explicit, systematic procedures to gather and evaluate all pertinent evidence.