Studies // Cited work
Quantifying heterogeneity in a meta-analysis
Higgins, J. P. T., & Thompson, S. G. (2002). Quantifying heterogeneity in a meta-analysis.
Level D Theory doi:10.1002/sim.1186
What this study supports
Supports the definition of I² as the proportion of total variation in study estimates due to heterogeneity, independent of the number of studies and the effect metric. Methods guidance, not evidence about any emotional outcome.
- Who was studied
- Not applicable: a statistical methods paper illustrated with five example meta-analytic data sets.
- Design
- Theory
- Level of evidence
- Cross-sectional, observational, qualitative work and narrative reviews.
Claims that rest on it
No claim in the ledger rests on this work yet.