1. These classifications are then combined into sixteen personality types. For example:
a. INTJs are visionaries. They usually have original minds and great drive. They are
characterized as skeptical, critical, independent, determined, and often stubborn.
b. ESTJs are organizers. They are realistic, logical, analytical, decisive, and have a
natural head for business or mechanics.
c. The ENTP type is a conceptualizer. He or she is innovative, individualistic,
versatile, and attracted to entrepreneurial ideas. This person tends to be
resourceful in solving challenging problems but may neglect routine assignments.
2. MBTI is widely used in practice although its validity as a measure of personality is
unclear.
B. The Big Five Personality Model
1. An impressive body of research supports that five basic dimensions underlie all other
personality dimensions. The five basic dimensions known as the Big Five Model are:
a. Extraversion. Comfort level with relationships. Extroverts tend to be gregarious,
assertive, and sociable. Introverts tend to be reserved, timid, and quiet.
b. Agreeableness. Individual’s propensity to defer to others. High agreeableness
people—cooperative, warm, and trusting. Low agreeableness people—cold,
disagreeable, and antagonistic.
c. Conscientiousness. A measure of reliability. A high conscientious person is
responsible, organized, dependable, and persistent. Those who score low on this
dimension are easily distracted, disorganized, and unreliable.
d. Emotional stability. A person’s ability to withstand stress. People with positive
emotional stability tend to be calm, self-confident, and secure. Those with high
negative scores tend to be nervous, anxious, depressed, and insecure.
e. Openness to experience. The range of interests and fascination with novelty.
Extremely open people are creative, curious, and artistically sensitive. Those at
the other end of the openness category are conventional and find comfort in the
familiar.
2. How do the Big Five traits predict behavior at work?
a. Research has shown relationships between these personality dimensions and job
performance.
b. Employees who score higher, for example, in conscientiousness develop higher
levels of job knowledge.
i. The study found conscientiousness—in the form of persistence, attention to
detail, and setting of high standards—was more important than other traits.
(Exhibit 5-1)
ii. These results attest to the importance of conscientiousness to organizational
success.
iii. Conscientious people live longer because they take better care of themselves
(they eat better and exercise more) and engage in fewer risky behaviors like
smoking, drinking and drugs, and risky sexual or driving behavior.
iv. Probably because they’re so organized and structured, conscientious people
don’t adapt as well to changing contexts.
v. They are generally performance-oriented and have more trouble learning
complex skills early in the training process because their focus is on
performing well rather than on learning.