Personality Factors (16PF)

What the 16PF measures

Raymond Cattell used factor analysis to distill thousands of personality-related words into 16 primary personality factors. Unlike the Big Five, which offers broad brushstrokes, the 16PF provides a high-resolution, granular view of personality. This makes it exceptionally powerful in predicting specific occupational behaviors, interpersonal dynamics, and clinical deviations.

The dimensions it assesses

• Warmth (A): Reserved vs. Warm
• Reasoning (B): Concrete vs. Abstract
• Emotional Stability (C): Reactive vs. Emotionally Stable
• Dominance (E): Deferential vs. Dominant
• Liveliness (F): Serious vs. Lively
• Rule-Consciousness (G): Expedient vs. Rule-Conscious
• Social Boldness (H): Shy vs. Socially Bold
• Sensitivity (I): Utilitarian vs. Sensitive
• Vigilance (L): Trusting vs. Vigilant
• Abstractedness (M): Grounded vs. Abstracted
• Privateness (N): Forthright vs. Private
• Apprehension (O): Self-Assured vs. Apprehensive
• Openness to Change (Q1): Traditional vs. Open to Change
• Self-Reliance (Q2): Group-Oriented vs. Self-Reliant
• Perfectionism (Q3): Tolerates Disorder vs. Perfectionistic
• Tension (Q4): Relaxed vs. Tense

What to do with your result

1. Occupational Alignment: Evaluate high scores in Dominance (E) and Social Boldness (H) for leadership roles; Perfectionism (Q3) and Reasoning (B) for technical roles.
2. Stress Management: If Apprehension (O) and Tension (Q4) are in the 8-10 range, implement cognitive-behavioral stress reduction techniques immediately. High scores here indicate burnout risk.
3. Interpersonal Collaboration: If Privateness (N) and Self-Reliance (Q2) are high, active team-building interventions may be necessary to prevent isolation in corporate settings.

Common questions about the 16PF

What does the 16PF measure?

Assessment of 16 distinct primary personality factors, which aggregate into 5 global traits (similar to the Big Five).

Can the 16PF diagnose me?

No. Personality Factors (16PF) is a screening questionnaire, not a diagnostic tool. It can flag that something may need a closer look. It cannot tell you what is causing it. It describes tendencies rather than diagnosing anything, and no result here is a condition or something to fix.

Is this 16PF test really free?

Yes. No account, no email address, no payment. Psychometrics Today is funded by donations rather than advertising, which is also what allows us to publish instruments whose authors permit free but non-commercial use.

Are my answers stored or shared?

No. Your answers are scored inside your browser and never sent to us. There is no database of responses, because we never receive any. Closing the tab erases them, which is why results cannot be recovered afterwards.

How often should I retake the 16PF?

Traits and preferences move slowly, so retaking this every few months is more informative than retaking it often. Larger shifts usually follow a genuine change in circumstances.

How accurate is the 16PF?

Screening questionnaires are good at flagging that something merits attention and poor at establishing what it is. This one is sensitive to how you feel on the day you take it, and many instruments were validated on narrow populations whose cut-offs may not transfer cleanly to everyone. The references at the foot of this page are the primary sources.

Why can I not take the 16PF here?

Commercial instrument requiring qualified-user licensing. We will not reproduce a questionnaire we have no right to reproduce, so this page explains what it measures instead. IPIP supplies public-domain equivalents for all 16PF primary factors.