John is studying punishment assigned to male or female drivers who cause minor or serious injuries to a victim in an automobile accident.He predicts that male drivers will receive harsher punishments than female drivers only when the injuries caused are severe.However,when the injuries are mild,he predicts no difference in assigned punishment between male and female drivers.The moderator variable in this design is

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The moderator variable in this design is the type of injuries received. John is predicting that the severity of the injuries will impact the relationship between the gender of the driver and the severity of punishment. When the injuries are severe, he predicts that male drivers will receive harsher punishments than female drivers. However, when the injuries are mild, he predicts no difference between male and female drivers. Therefore, the type of injuries received is moderating the relationship between the gender of the driver and the severity of punishment.

John Is Studying Punishment Assigned to Male or Female Drivers