Details

Autor(en) / Beteiligte

• Stoll, Carolyn R.T.
• Izadi, Sonya
• Fowler, Susan
• Green, Paige
• Suls, Jerry
• Colditz, Graham A.

Titel

The value of a second reviewer for study selection in systematic reviews

Ist Teil von

• Research synthesis methods, 2019-12, Vol.10 (4), p.539-545

Ort / Verlag

England: Wiley-Blackwell

Erscheinungsjahr

2019

Link zum Volltext

Quelle

ERIC

Beschreibungen/Notizen

• Background Although dual independent review of search results by two reviewers is generally recommended for systematic reviews, there are not consistent recommendations regarding the timing of the use of the second reviewer. This study compared the use of a complete dual review approach, with two reviewers in both the title/ screening stage and the full‐text screening stage, as compared with a limited dual review approach, with two reviewers only in the full‐text stage. Methods This study was performed within the context of a large systematic review. Two reviewers performed a complete dual review of 15 000 search results and a limited dual review of 15 000 search results. The number of relevant studies mistakenly excluded by highly experienced reviewers in the complete dual review was compared with the number mistakenly excluded during the full‐text stage of the limited dual review. Results In the complete dual review approach, an additional 6.6% to 9.1% of eligible studies were identified during the title/ stage by using two reviewers, and an additional 6.6% to 11.9% of eligible studies were identified during the full‐text stage by using two reviewers. In the limited dual review approach, an additional 4.4% to 5.3% of eligible studies were identified with the use of two reviewers. Conclusions Using a second reviewer throughout the entire study screening process can increase the number of relevant studies identified for use in a systematic review. Systematic review performers should consider using a complete dual review process to ensure all relevant studies are included in their review.