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Identifying and removing duplicate records from systematic review searches.
This study compared five de-duplication methods for systematic review searches, finding significant variations in time, false positives, and false negatives. The best option depends on searcher skill and de-duplication goals.
Area of Science:
- Information Science
- Systematic Review Methodology
Background:
- Systematic reviews require rigorous de-duplication of search records.
- Various de-duplication methods exist, but their comparative effectiveness is not well-established.
Purpose of the Study:
- To compare the effectiveness of different de-duplication options for records from systematic review searches.
- To evaluate time efficiency and accuracy (false positives/negatives) of de-duplication techniques.
Main Methods:
- Utilized records from a published systematic review.
- Compared five distinct de-duplication options.
- Recorded de-duplication time, false positives, and false negatives for each option.
Main Results:
- Significant variation in time required for each de-duplication option.
- Substantial differences in the number of false positives and false negatives across methods.
- No single method proved universally superior.
Conclusions:
- De-duplication method selection should align with searcher expertise.
- The intended purpose of the de-duplication process influences the optimal choice of method.
- Tailoring de-duplication strategy enhances systematic review efficiency and accuracy.
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