PersonalityTests

Type A, B, C, D Personality Test — Which One Are You?

Who this is for: For anyone who's been called 'so Type A' and wants to know what that actually claims — and what the stress research says.

15 questions place you on the classic Type A/B/C/D spectrum — the cardiology-born typology that started it all.

Quick answer: Type A = competitive and time-urgent (Friedman & Rosenman, 1950s cardiology); Type B = relaxed; Type C = perfectionist who suppresses emotions to please; Type D = worrier who keeps it inside. 15 questions return your A/B/C/D percentage split — blends are the norm.

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Pick the answer that feels most like you — no overthinking.
Core facts
FrameworkFriedman-Rosenman A/B + cardiology-psychology C/D extensions
Questions15 everyday scenarios, ~2 minutes
ResultA/B/C/D percentage split + primary profile
Originheart-health research, 1950s onward
Health notestress links real but modest — not a medical assessment
StatusFrameworks in public domain academic / pop-psychology use: True Colors (Don Lowry, 1978), Jungian archetypes (Jung / Pearson's 12), the Friedman-Rosenman A/B typology with C/D extensions, MBTI-style dichotomies, the Enneagram's nine types, and the Big Five (OCEAN). Scores are self-report snapshots for reflection and conversation — not clinical assessments.

What are Type A, B, C and D personalities?

Type A is the original: cardiologists Meyer Friedman and Ray Rosenman noticed in the 1950s that their heart patients shared a cluster — competitiveness, time urgency, hostility — and labeled it Type A against the relaxed Type B. Later researchers added Type C (the emotionally-suppressing perfectionist) and Type D (chronic worry plus social inhibition), both also studied for health correlations. This test asks 15 everyday questions — how you handle lines, criticism, credit-stealing coworkers — and returns your A/B/C/D split as percentages. Most people lean one way with a strong secondary; pure single-type results are rare and worth double-checking against how an honest friend would answer for you.

Common uses

  • Understanding why deadline weeks feel so different for you than colleagues
  • Naming a stress pattern (C's self-silencing, D's rumination) before it names you
  • A shared vocabulary for team pace conversations
  • Checking whether 'Type A' is a badge or a workload risk

Frequently Asked Questions

What is a Type A personality?
The classic Friedman-Rosenman profile: competitive, time-urgent, chronically busy and quick to anger at obstacles. Type A predicts workplace output and, in the original research, elevated cardiovascular risk — though later studies found the hostility component, not the busyness, carries most of that risk. Modern take: drive is fine, simmering anger is the expensive part.
What's the difference between Type C and Type D?
Both internalize, but differently. Type C suppresses emotions to please others and keep harmony — the diligent accommodator. Type D combines negative affect with social inhibition — worrying quietly without sharing it. C swallows feelings for others' comfort; D holds fear alone. Both patterns are studied for stress-health links, and both respond well to simply being named out loud to one trusted person.
Is Type B just lazy?
No — Type B is ambitious without urgency. Type Bs meet the same deadlines with lower physiological toll; longitudinal studies find they're not less accomplished, just less frantic. If anything, Type B is the profile most Type As are trying to borrow from.
Can your type change?
The underlying temperament is fairly stable, but the expression moves with circumstances and deliberate practice — Type A urgency softens with boundary-setting, Type C accommodation loosens with practice saying no. Retaking this test after a big life change often shows a shifted split.
Is this the same as the Big Five?
Related but not identical. Type A overlaps with high conscientiousness plus lower agreeableness under stress; Type D overlaps with higher neuroticism plus introversion. The Big Five test on this site measures those traits directly with finer resolution.
Does being Type A mean I'll have heart problems?
No — the original strong claims didn't fully replicate, and modern cardiology treats personality as one small factor among diet, activity, genetics and sleep. The useful residue of that research is stress-management: chronic hostility and time pressure are worth managing for quality of life, whatever your chart says.

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