one-way ANOVA

One-way ANOVA (Analysis of Variance) is a statistical method used to compare the averages of three or more groups to see if they differ significantly. It tests whether differences in group means are likely due to real effects or just random variation. For example, it can determine if different diets produce different weight loss results. If the test finds significant differences, it suggests at least one group differs from the others. It helps researchers understand if the factors they are studying have a meaningful impact across multiple groups without having to compare each pair individually.