Answer:
The theory of personality that suggests that one person differs from another because of a number of different characteristics such as introversion or extroversion is: Trait theory.
Explanation:
Trait theory of personality also named as dispositional theory, is based on the study of personality through traits.
Acording to this theory a person can be define by being introverted or extroverted, which are more or less stable traits that would determine a person's behavior and way of thinking.
