Examine the graphs of the cell means from three 2 X 3 analyses of variance and one 3 X 3 ANOVA shown in Figure 19.6. Suppose that in each case all three F tests (row, column, and interaction) proved to be significant. (a) Which interactions are ordinal and which are disordinal? (b) In which case(s) would conclusions based on a main effect for row factor alone be misleading? Explain.