Parris's approach is based on his fear and ignorance. He is quick to believe the worst of Tituba and does not give her a chance to defend herself. He sees Tituba as a threat and wants to punish her for her alleged crimes. Hale, on the other hand, is more open-minded and compassionate. He listens to Tituba's story and tries to understand why she might have done what she is accused of. He does not want to punish Tituba, but rather help her to find the truth.
Parris's approach is ultimately harmful, as it leads to Tituba being unjustly accused of witchcraft. Hale's approach is more productive, as it helps Tituba to tell her story and find the truth.