4 primary factors

The four Primary Factors measured by PI are Factor A (Dominance), Factor B (Extraversion), Factor C (Patience) and Factor D (Formality).

Each of the four Primary Factors is a drive to behave in a particular way, and each is different from the others. Every individual has all four Factors in his or her total pattern of behavior.

Dominance: The drive to exert one’s influence on people or events

Extraversion: The drive for social interaction with other people

Patience: The drive for consistency and stability

Formality: The drive to conform to rules and structure