FIGURE 12-
Interpreting the Interaction
The nonparallel lines demonstrate the interaction. The bars tell us that, on average, repetition decreases errors for younger people but increases them for older people. Because the direction reverses, this is a qualitative interaction.
Interpreting the Interaction
The nonparallel lines demonstrate the interaction. The bars tell us that, on average, repetition decreases errors for younger people but increases them for older people. Because the direction reverses, this is a qualitative interaction.