Dictionary
The Dictionary provides concise definitions of health economics terms, arranged alphabetically for quick reference. Use it to understand unfamiliar terminology or confirm the meaning of a specific term.
C
- Chi-Square DistributionChi-Squared Distribution, X2 Distribution
- A continuous probability distribution arising from the sum of squared standard normal variables, underlying tests such as goodness of fit.
H
- Heterogeneity AssessmentHeterogeneity Testing, I-Squared Assessment
- Heterogeneity assessment evaluates the nature, extent, and possible causes of differences in effects or outcomes across studies, populations, or settings.
I
- I-SquaredI2 Statistic, Higgins I2
- A statistic quantifying the percentage of total variation across studies in a meta-analysis attributable to genuine heterogeneity rather than chance.