Final answer:
The lack of objection from "good" guards in the Stanford prison experiment can be attributed to diffusion of responsibility and the power of conformity, whereas the student prisoners' passivity can be linked to the effects of dehumanization and learned helplessness.
Step-by-step explanation:
The reactions of the participants in the Stanford prison experiment can be understood within psychological and social contexts. The "good" guards may not have objected to the abusive behavior of other guards due to the phenomenon known as diffusion of responsibility, where individuals in groups are less likely to take action or feel responsible when others are present.
This is compounded by the power of conformity, where the desire to fit in with the group and the perceived authority of the prison environment influenced behavior. The student prisoners likely didn't object to being abused due to the effects of dehumanization and learned helplessness that can occur in oppressive environments.