ANOVA, the acronym for 'Analysis of Variance', is a statistical method used to determine the differences between groups or treatments in a study. Synonyms for ANOVA include the term 'univariate analysis', which is used to compare two or more groups or treatments on a single variable. Other corresponding terms include 'one-way ANOVA,' which evaluates differences between one treatment and a control group, and 'two-way ANOVA,' which compares differences between two treatments and their interactions. 'Repeated measures ANOVA' examines variations within a group over time or under different conditions. 'Multivariate analysis' is another type of analysis that evaluates multiple variables simultaneously as opposed to ANOVA, which focuses on one key variable.