Rogers and Prentice-Dunn (1981) had 96 white male undergraduates deliver shocks to their fellow subjects as part of a biofeedback study. They recorded the amount of shock that the subjects delivered to white participants and black participants when the subjects had and had not been insulted by the experimenter. Their results are shown in Figure 3.13. Interpret these results. (One of my earlier guidelines said to start each axis at zero or break the axis. Why does that not make sense here?)

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160 Black White No insult From Roges and Phentice Dunn (198 Figure 3.13 Shock level as a function of race and insult condition.