One-way analysis of variance compares the means of several groups. It has a single grouping variable, called a factor, and a continuous dependent variable. Analysis of variance (ANOVA) partitions the total variation among scores into between-groups (treatment) and within-groups (error) variance. The F ratio, the test statistic, determines if the differences are large enough to reject the null hypothesis. ANOVA may be extended to two-way, n -way, repeatedmeasures, and multivariate applications. Explain.