Model Comparison Approach, Model 2 Model 2 uses one categorical independent variable and a metric dependent variable and offers a more advanced discussion using linear regressions with dummies, t-test, and factorial ANOVA. <span data-mce-type="bookmark" style="display: inline-block; width: 0px; overflow: hidden; line-height: 0;" class="mce_SELRES_start"></span>
