Elizabeth Proctor
John's wife is scarred by many traumas throughout the play. How does she deal with everything thrown at her: the affair, the accusation and following trial? How do these events effect her views of witchcraft? Do they effect her views of witchcraft?

Most of your information will come from a close reading of the actual play. Pay close attention to Elizabeth's scenes in Acts 2, 3, and 4.
You might also want to check out the following books:
Bloom,
Harold. Bloom's Reviews: Arthur Miller's The Crucible.
New York: Chelsea House Publishing, 1998.
Johnson,
Claudia Durst, and Vernon E. Johnson. Understanding The Crucible.
New York: Greenwood Publishing, 1998
Martine,
James J. The Crucible: Politics, Property, and Pretense.
New York: Twayne Publishers, 1993.