In conducting a systematic review, why is it important to search gray literature (e.g., unpublished studies, conference abstracts)?
Understand the Problem
The question asks why it's important to search gray literature when conducting a systematic review. Gray literature refers to studies and materials not published commercially, such as unpublished studies and conference abstracts. The question is testing knowledge of research methodologies and the importance of comprehensive literature searches.
Answer
B: It helps prevent publication bias by capturing studies with null or negative results.
The correct answer is B: It helps prevent publication bias by capturing studies with null or negative results. Gray literature can provide a more balanced view of the available evidence by including studies that might not be published due to insignificant or negative results.
Answer for screen readers
The correct answer is B: It helps prevent publication bias by capturing studies with null or negative results. Gray literature can provide a more balanced view of the available evidence by including studies that might not be published due to insignificant or negative results.
More Information
Searching gray literature helps to minimize publication bias, increase reviews' comprehensiveness and timeliness, and foster a balanced picture of available evidence.
Tips
A common incorrect answer is C, which suggests prioritizing studies with significant findings. However, the purpose of a systematic review and searching gray literature is to capture a comprehensive and unbiased view of all available evidence, not just the studies with significant results.
Sources
- Systematic Reviews: Grey Literature & Handsearching - guides.mclibrary.duke.edu
- Gray literature: An important resource in systematic reviews - PubMed - pubmed.ncbi.nlm.nih.gov
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