The Methods Coordinating Group compiled this listing of useful tools and information portals for Campbell authors and reviews. These online resources feature software and toolkits from collaborators, manuals on systematic review techniques, and recommended guidelines in methods.
The single best Web-based source for doing systematic reviews.
TrialStat! offers software to help organize the systematic review software. *Free for Campbell and Cochrane reviewers. (Note: You may need to click this link twice before the site will open.)
This EQUATOR Network's Web page links to several useful documents including CONSORT, QUORUM, and MOOSE guidelines.
The CRK offers guidance for reviewers undertaking a systematic review.
David Wilson (George Mason University) provides an Excel spreadsheet for computing a variety of effect sizes; SPSS , Stata, and SAS macros for performing meta-analyses; and PowerPoint slides on a variety of issues related to systematic reviews and meta-analyses.
Will Shadish (University of California at Merced) offers citations to software for meta-analysis and effect size calculation; also has links to information on conducting meta-analysis with single case designs.
Lee Becker (University of Colorado at Colorado Springs) provides a simple Web-based calculator for computing standardized mean difference effect sizes from means and standard deviations or from t-statistics with degrees of freedom.
This Web page offers links to Internet-based information on conducting all aspects of a systematic review.
A guide to thinking about issues involved in interpreting effect sizes is provided by the What Works Clearinghouse. See Part IV, Section E and Appendix B for information on effect size.