Reverend hale changed when

he realized that he was not an expert in witchcraft
he realized elizabeth proctor and others were innocent
john proctor could not recite one of the ten commandments
he learned that he might also be found guilty of witchcraft

Reverend Hale changed when .

he realized Elizabeth Proctor and others were innocent.

i think the correct answer would be adjustments in life roles.  this causes for one to adjust or change totally his/her career or lifestyle since the present is not beneficial to the life role he is at. for instance, you became a mother you would of course stop going to malls and enjoying life outside. you would be staying at home taking care of your child.