RESEARCH METHODS F/ BEHAV.(LL)-W/MINTAP
RESEARCH METHODS F/ BEHAV.(LL)-W/MINTAP
6th Edition
ISBN: 9781337755016
Author: GRAVETTER
Publisher: CENGAGE L
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Chapter 11, Problem 7E

In Figure 11.5, we show three combinations of main effects and interactions for a 2 × 2 factorial design. Using the same 2 × 2 structure, with factor A defining the rows and factor B defining the columns, create a set of means that produce each of the following patterns:

a. A main effect for factors A and B, but no interaction.

b. A main effect for factor A and an interaction, but no main effect for factor B.

c. A main effect for both factors and an interaction.

FIGURE 11.5

Three Possible Combinations of Main Effects and Interactions in a Two-Factor Experiment.

(a) Data showing a main effect for factor A but no main effect for factor B and no interaction.

Chapter 11, Problem 7E, In Figure 11.5, we show three combinations of main effects and interactions for a 2  2 factorial , example  1

(b) Data showing main effects for both factor A and factor B but no interaction.

Chapter 11, Problem 7E, In Figure 11.5, we show three combinations of main effects and interactions for a 2  2 factorial , example  2

(c) Data showing no main effect for either factor, but an interaction.

Chapter 11, Problem 7E, In Figure 11.5, we show three combinations of main effects and interactions for a 2  2 factorial , example  3

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