The cell means are important for Descriptive Statistics interpreting factorial ANOVAs and describing the results. Dependent Variable: math achievement test math grades academic track Mean Std. Deviation less A-B fast track 12.8751 5.73136 24 regular track 8.3333 5.32563 20 Total 10 8106 5.94438 44 most A-B fast track 19.2667 4.17182 10 regular track 13.0476 7.16577 21 Total 15.0538 6.94168 31 Total fast track 14.7550 6.03154 34 regular track 10.7479 6.69612 41 Total 12.5645 6.67031 75 These Fs and significance levels tell you important information about differences between means and the interaction. Tests of Between-Subjects Effects Dependent Variable: math achievement test Type Ill Sum of Partial Eta Source Squares Mean Square Sig Squared Corrected Model 814.4813 3 271.494 7.779 .000 247 20 Intercept 11971.773 11971.773 343.017 .000 . 827 mathgr 515 463 515.463 14.769 .000 acadtrac 483.929 483.929 13.866 000 .143 mathgr * acadtrac 11.756 11.756 337 563 Error 2478.000 71 34.901 Total 15132.393 75 Corrected Total 3292.481 74 a. R Squared = 247 (Adjusted R Squared= .216) Ela squared is an index of the effect size for each independent variable and the interaction Thus, about 17% of the variance in math Percent of variance in moth achievement achievement can be predicted from mark grades predictable from both independent variables and the interaction e Plots Estimated Marginal Means of math achievement test academic track fast track -regular track Estimated marginal Means Plot for fast track. Note that the lines in the plot are approximately parallel. Plot for regular track. less A-B most A-B math grades