If the cell means of a factorial design study are graphed,and the pattern of bars in one section of the graph is different from the pattern in the other section,the pattern indicates that
A)marginal means should also be plotted.
B)there are more participants in one of the conditions.
C)there is an interaction effect.
D)a rounding error was made or the means were plotted improperly on the graph.

Question

Quizplus · Accepted Answer

A different pattern of bars in one section of the graph compared to the other section suggests that there is an interaction effect. If there was a difference due to a rounding error or improper plotting of means, the pattern would be consistent across all sections of the graph. Marginal means and participant numbers would not necessarily explain the different patterns.

If the Cell Means of a Factorial Design Study Are