dummy variables
homogeneity of regression
biostatistics and clinical epidemiology
F-ratio
matched pairs
homogeneity of variance
covariates
statistical control
statistics and research methods
quantitative data analysis
Analysis of covariance (ANCOVA) is a combination of analysis of variance (ANOVA) and regression analysis because the model contains both quantitative and qualitative independent variables. The idea is to enhance the ANOVA model by adding one or more quantitative independent variables that are related to the dependent variable. [Source: Encyclopedia of Epidemiology; Analysis of Covariance]
ANCOVA
analysis of covariance
methods