Which statement is true about traditional literature reviews?

Which statement is true about traditional literature reviews?

• A. They are more narrative and less methodical than systematic reviews.
• B. They always follow a predefined protocol.
• C. They routinely include formal bias assessments.
• D. They rely solely on randomized controlled trials.

Answer: (A)

Traditional literature reviews are typically narrative and less methodical than systematic reviews. They summarize what’s been studied by the author based on selected sources, often guided by the reviewer’s judgment and reading path rather than a transparent, predefined plan. Because they don’t always spell out search strategies, inclusion criteria, or formal appraisal methods, they can be less reproducible and more subjective, which is why they’re described as more narrative. In contrast, systematic reviews follow a predefined protocol that specifies exactly how studies will be searched, selected, and evaluated, and they often assess the risk of bias across included studies and may combine results quantitatively in a meta-analysis. That’s why the statement about traditional reviews being more narrative and less methodical is the best fit. The other choices don’t fit because traditional reviews don’t always follow a predefined protocol, they don’t routinely include formal bias assessments, and they aren’t limited to randomized controlled trials.

Traditional literature reviews are typically narrative and less methodical than systematic reviews. They summarize what’s been studied by the author based on selected sources, often guided by the reviewer’s judgment and reading path rather than a transparent, predefined plan. Because they don’t always spell out search strategies, inclusion criteria, or formal appraisal methods, they can be less reproducible and more subjective, which is why they’re described as more narrative.

In contrast, systematic reviews follow a predefined protocol that specifies exactly how studies will be searched, selected, and evaluated, and they often assess the risk of bias across included studies and may combine results quantitatively in a meta-analysis. That’s why the statement about traditional reviews being more narrative and less methodical is the best fit.

The other choices don’t fit because traditional reviews don’t always follow a predefined protocol, they don’t routinely include formal bias assessments, and they aren’t limited to randomized controlled trials.