He developed the Likert scale in 1932 in his PhD thesis, using it to identify the extent of a person’s beliefs, attitudes, and feelings towards international affairs. The traditional Likert scale asks people the extent to which they agree or disagree with a statement on a 5-point scale. The scale ranges from “strongly agree” to “strongly disagree. Using a 5 point scale allowed him to rank people's attitudes with fewer questions and greater exactness.