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Comprehensive computer searches and reporting in systematic reviews.

Paul Fehrmann1, Joelle Thomas2

  • 1University Libraries, Kent State University, Kent, Ohio, USA. pfehrman@kent.edu.

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Comprehensive computer searches in systematic reviews (SR) are crucial. This study found Cochrane SR utilized recommended search methods like truncation and controlled vocabulary more often than psychology SR, enhancing review reliability.

Keywords:
comprehensivenesscomputer searchesqualityreportingsystematic review

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Area of Science:

  • Information Science
  • Psychology
  • Health Sciences Research

Background:

  • Systematic reviews (SR) rely on comprehensive computer searches for study identification.
  • The quality of SR can be impacted by the search methodology employed.
  • Assessing the reporting of search methods in SR is vital for evaluating review reliability.

Purpose of the Study:

  • To evaluate the reporting of comprehensive computer search methods in psychology systematic reviews.
  • To compare the use of recommended search strategies between psychology SR and those from the Cochrane Database of Systematic Reviews.
  • To identify potential gaps in search reporting that may affect confidence in SR conclusions.

Main Methods:

  • Developed a checklist based on recommended comprehensive computer search methods from SR manuals and organizations.
  • Searched PsycINFO for SR in psychology and compared findings with SR from the Cochrane Database of SR.
  • Utilized descriptive analyses and Mann-Whitney U-test to compare search method frequencies between the two SR groups.

Main Results:

  • Cochrane SR significantly more frequently reported the use of truncation (z = -5.64, p < .001) and controlled vocabulary (z = -5.08, p < .001) compared to psychology SR.
  • Cited Reference Searching was rarely reported in both psychology SR (0/25) and Cochrane SR (1/25).
  • Discrepancies in reporting recommended search methods were observed between the two SR sources.

Conclusions:

  • The reporting of recommended search methods, such as truncation and controlled vocabulary, varies significantly between psychology SR and Cochrane SR.
  • Underreporting or absence of evidence for recommended search strategies may undermine confidence in SR conclusions.
  • Findings offer insights for users, evaluators, and guideline developers of systematic reviews to improve search reporting standards.