In statistics, analysis of variance (ANOVA) is comparing the means of three or more groups. There are different types of ANOVAs: One-way, Two-way, Three-way, etc., depending on the number of independent variables (IVs) and how many repeated measures. 

Example: a one-way ANOVA has only 1 IV with no repeated measures.

*Note: Three things to look for in your ANOVA: Significance (F test), effect size (w² or R²) and power (φ).