Quick self-check
Rate each statement from 1 (not me) to 5 (very me). It takes one minute.
Type A and Type B traits
Type A
- Competitive and ambitious
- Always short of time, hates waiting
- Does several things at once
- Impatient with slow people
- Finds it hard to relax
- Can become irritable or hostile under pressure
Type B
- Relaxed and patient
- Enjoys the process, not only the result
- Rarely feels rushed
- Slow to anger
- Creative and reflective
- Can put things off or lack urgency
Where the idea comes from
Type A and Type B were described in the 1950s by two American cardiologists, Meyer Friedman and Ray Rosenman, who noticed that many of their heart patients were driven, impatient and competitive. Later research gave a more nuanced picture: drive and ambition are not the problem. Hostility and chronic anger, one part of the Type A pattern, are what show the clearest link with heart disease.
Type C and Type D
Type C is used for people who are cooperative, patient and tend to hold back negative feelings such as anger. Type D ("distressed") describes people who often feel worried, irritable or low and keep those feelings to themselves in social situations. Type D has been studied mainly in heart patients.
Type A, Type B and the 16 personality types
These labels are separate from four-letter types, but there is overlap. People high in drive and discipline (often Judging types such as ENTJ and ESTJ) tend to show more Type A habits, while relaxed Perceiving types such as ISFP and ESFP often look more Type B. Our personality test measures Drive, Discipline and Calm directly, from 0 to 100.
For fun and self-reflection. NineTraits tests are for entertainment and personal insight. They are not a clinical, psychological, medical or professional assessment, and they should not be used to make decisions about health, hiring, relationships or education. If you are struggling, please talk to a qualified professional. Full disclaimer