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.
E
- Exchangeable CorrelationConceptCompound Symmetry, Exchangeable Working Correlation
- A correlation structure for repeated measures assuming any two observations within the same cluster are equally correlated, regardless of their timing or order.
M
- Mixed Model Repeated MeasuresConceptMMRM, Repeated-Measures Mixed Model
- A longitudinal trial analysis method using a mixed effects framework under the missing at random assumption, an alternative to last observation carried forward.
R
- Repeated MeasuresTermWithin-Subject Data, Repeated Observations
- A study design in which the same outcome is measured multiple times on the same individuals, typically at different points in time.
- Repeated Measures AnalysisConceptRM-ANOVA, Within-Subject Analysis
- A statistical approach analysing data in which the same outcome has been measured multiple times on the same individuals, accounting for correlation.
U
- Unstructured CorrelationConceptUnstructured Covariance, Unstructured Working Correlation
- A correlation structure for repeated measures allowing the correlation between every pair of time points to be estimated freely and independently.