Final answer:
Mary Warren's change in testimony was influenced by peer pressure and danger of accusation. Elizabeth Proctor lied in court to protect her husband, which backfired. Hysteria and peer pressure fueled the Salem Witch Trials, leading to tragic outcomes.
Step-by-step explanation:
Mary Warren changed her testimony in Act Three due to the immense peer pressure and the hysteria surrounding the Salem Witch Trials. If she had stayed with her original story, she risked being ostracized or even accused of witchcraft herself. The accusations made by the young girls were influenced by mass adolescent hysteria and the belief in witchcraft was deeply embedded in Puritan society.
John Proctor's testimony in court was an attempt to expose the falsehood of the girls' accusations by providing evidence that they were lying. Elizabeth Proctor, John Proctor's wife, lied in court when she claimed her husband was not an adulterer, believing it would protect him. However, this decision backfired, as it contradicted John's confession of the affair, thus damaging their credibility and case.
The young girls in the courthouse, led by Abigail Williams, feigned having fits and being attacked by the spirits of the accused in order to manipulate the court and create a spectacle that would lead to convictions. Danforth's decision at the end of Act Three was to continue with the trials, siding with the accusers rather than believing the Proctors and Mary Warren, thus deepening the tragedy of the witch hunts.
Reverend John Hale's decision to denounce the court and quit the proceedings indicates his growing realization that the trials have become a farce and his beliefs about the integrity of the court have been shattered. He can no longer support a system that executes innocent people based on dubious evidence, as shown by his actions at the close of Act Three.
Hysteria and peer pressure played significant roles in influencing individuals to engage in negative behaviors, such as false accusations and perpetuation of falsehoods out of fear or the desire for attention. These phenomena created a toxic environment that allowed the witch trials to spiral out of control, with tragic consequences for many.