There are four basic personality types: A, B, C, and D. Each has strengths and weaknesses influencing hiring and retention, as well as management strategy.
What Type a, B, C, or D Personalities Mean
Exploring the ABCD of personality types
The Big 5 Personality Traits
4 Personality Types: A, B, C, and D, type
Understanding The 4 Personality Types: A, B, C, And D
Concepts in animal personality research: a Behavioral types
4 Personality Types: A, B, C, and D
ABCD Personality Types: Characteristics of the Four Types
Exploring the ABCD of personality types