What is dispositional change?
Relevant Words of God:
What is the transformation of disposition? You must be a lover of truth, accept the judgment and chastisement of God’s word as you experience His work, and experience all kinds of suffering and refining, through which you are purified of the satanic poisons within you. This is the transformation in disposition. … The transformation in disposition means that a person, because he loves and can accept the truth, finally comes to know his disobedient and God-resisting nature; he understands that the corruption of man is too deep and understands man’s absurdness and deceitfulness.