16PF Personality Test Practice: The 16 Factors, Sten Scores, and Sample Questions

If an employer has asked you to take the 16PF, you are not being tested on right answers. The 16PF Personality Test (the Sixteen Personality Factor Questionnaire) measures 16 normal-range personality traits on a 1-to-10 sten scale, and a recruiter reads the pattern across those traits to judge how you would fit a specific role. There is no pass or fail. What you can practice is the format, the pace, and knowing what each factor signals to the person reading your report, so you answer consistently and honestly instead of second-guessing every item.

This guide gives you the full 16-factor table with codes and poles, the five global factors that sit above them, how sten scores actually work, real sample questions in the format the test uses, and a fast prep plan for the 24 to 72 hours before you sit down.

Quick takeaways

• The 16PF has 185 multiple-choice items and takes about 35 to 50 minutes (roughly 30 minutes on a computer), per the publisher's Fifth Edition specifications.
• It measures 16 primary personality factors, each scored on a sten scale of 1 to 10 (mean 5.5, standard deviation 2). Low is 1 to 3, average is 4 to 7, high is 8 to 10.
• There is no good or bad score. Every factor is bipolar, and employers compare your profile to the target profile for the job.
• The real 16PF is a commercial, professionally scored instrument now owned by PSI Services. Free online versions labeled "16PF" are usually public-domain look-alikes, not the actual test.
• You cannot cram a personality test, but you can practice the format, reduce anxiety, and answer consistently. Faking toward an imagined ideal triggers validity flags.
• The best prep is understanding what each factor signals to a hiring manager, then answering as your honest, work-self.

What the 16PF personality test actually measures

The 16PF was built by psychologist Raymond B. Cattell, who used factor analysis in the 1940s to reduce thousands of personality descriptors down to 16 underlying source traits. The current version, the Fifth Edition, was published in 1993 and is still used in hiring, leadership development, career counseling, and clinical settings.

It is a measure of normal-range personality. That means it is not looking for disorders or red flags. It is mapping stable tendencies: how warm or reserved you are, how you handle pressure, whether you like structure, how you make decisions. Each of the 16 factors runs on a spectrum between two poles, and your sten score tells the reader where you land.

One ownership detail no competing guide mentions, and it matters for trust: Cattell's original publisher (IPAT) passed the instrument to OPP, then to PAN, and it was acquired by PSI Services in 2017. If you find a free "16PF test" online, it is almost always an IPIP proxy in the public domain, not the professionally scored Gallup-era instrument an employer would use. Practicing the real format matters more than taking a look-alike quiz.

The 16 personality factors (full table)

Here is the complete list with each factor's letter code and both poles. Notice the alphabet skips D, J, K, and P. Those letters were assigned during Cattell's early research and later dropped when the factors did not hold up. No competing guide flags this, and it is a quick way to spot a source that actually knows the instrument.

One factor stands apart. Factor B, Reasoning, is a short measure of abstract reasoning ability rather than a temperament trait. It behaves more like a mini cognitive item set inside a personality questionnaire, so treat it differently from the rest.

The 5 global factors

Above the 16 primary factors sit five broader dimensions, called global or second-order factors. They are what most reports summarize first, and they map closely onto the Big Five model that dominates modern personality science. If you have already looked at the Big Five personality test used in hiring, these will feel familiar.

• Extraversion: driven by factors A, F, H, N, and Q2.
• Anxiety: driven by C, L, O, and Q4.
• Tough-Mindedness: driven by A, I, M, and Q1.
• Independence: driven by E, H, L, and Q1.
• Self-Control: driven by F, G, M, and Q3.

When a recruiter opens your report, they usually scan these five first for a quick read, then drill into the individual factors that matter for the role.

How sten scores work

This is the single most useful thing to understand before you sit the test, and it is missing from almost every free guide.

Your results are not raw counts. Each factor is reported on a sten scale (short for "standard ten"), which runs from 1 to 10 with a mean of 5.5 and a standard deviation of 2. The bands read like this:

A sten of 8 on Factor H means high Social Boldness. A sten of 2 on the same factor means shy and cautious. Neither is wrong. The point of the bipolar design is that there is no universally correct answer, so stop trying to guess a target and answer as yourself.

16PF sample questions and how to approach them

The real Fifth Edition uses mostly three-option items (for example, true / uncertain / false), not the seven-point agree scale you see on free consumer quizzes. Below are three illustrative items written in that format. These are not taken from any real 16PF test. They exist only to show you the shape and how to think about each one.

Sample 1 "I find it easy to strike up a conversation with people I have just met."

• True / Uncertain / False
• This targets Factor H (Social Boldness) and feeds the Extraversion global. Answer based on your real behavior at work, not who you wish you were in a meeting.

Sample 2 "I prefer to plan things well in advance rather than decide as I go."

• True / Uncertain / False
• This targets Factor Q3 (Perfectionism) and the Self-Control global. There is no bonus for picking "planner." A role that needs improvisation may value the opposite.

Sample 3 "When someone criticizes my work, I usually stay calm and unbothered."

• True / Uncertain / False
• This targets Factor C (Emotional Stability) and low Anxiety. Resist the urge to always pick the flattering answer. Consistent, honest responses read better than a suspiciously perfect profile.

The approach for every item is the same: answer quickly, answer consistently, and use the "uncertain" middle option sparingly. Sitting on the fence for half the test makes your report hard to interpret and can flag the result.

What a recruiter actually reads from your profile

Here is the employer lens that the top-ranking guides skip entirely. A hiring manager does not want a "high" score on everything. They compare your sten profile to a target profile for the role. A few rough, illustrative examples of what a target might emphasize:

These are illustrative, not official cutoffs. The lesson is that "high" and "low" only mean something against a role. That is exactly why chasing a fake ideal backfires: you might push a factor into a band that does not fit the job, and the interview questions that follow will expose the gap.

A fast 16PF prep plan

You do not need weeks. Here is what to do in the day or two before your test.

1. Learn the 16 factors and the 5 globals using the tables above so no factor name surprises you.
2. Understand sten bands so you know your results are a bipolar pattern, not a grade.
3. Do a few timed format reps. Practice answering three-option items at a steady pace so the interface and the time pressure feel familiar.
4. Read the role first. Skim the job description and think honestly about which of your real strengths line up. This prepares you for the follow-up interview, not just the test.
5. On the day, answer fast and honestly. Consistency beats calculation. The instrument has validity checks that catch impression management.

FAQ

How can I prepare for the 16PF test?

You cannot memorize answers for a personality test, but you can prepare the parts that actually help. Learn the 16 factors and what each signals, practice the three-option format at a steady pace, and read the role so you can talk about your genuine strengths afterward. The goal is a consistent, honest profile, not a gamed one.

How do you pass a 16 personality test?

There is no pass or fail. "Passing" really means producing an authentic profile that fits the role's target pattern. If you fake toward an imagined ideal, you risk landing in a band that does not match the job, and validity scales can flag inconsistent answering.

What is a good 16PF test score?

There is no universal good score, because every factor is bipolar. A good result is a profile that matches what the role needs. Sten scores of 1 to 3 are low, 4 to 7 are average, and 8 to 10 are high, and the reader interprets your pattern against a target profile.

How many questions are on the 16PF test?

The Fifth Edition has 185 multiple-choice items and takes about 35 to 50 minutes on paper, or roughly 30 minutes on a computer.

Is the 16PF test still relevant?

Yes. It is still used commercially in hiring, leadership development, and career counseling. Modern psychologists often prefer the Big Five model, which grew out of the same factor-analytic tradition, but the 16PF remains a live selection tool, so employers still administer it.

Can you fake a 16PF test?

You can try, but it usually backfires. The instrument includes validity and impression-management checks that flag suspiciously perfect or inconsistent answering. A profile that reads as too polished raises more questions than an honest one, and it can put you in a role that does not actually fit you.

Are free online 16PF tests the real thing?

Usually not. The real 16PF is a professionally scored, commercial instrument now owned by PSI Services. Most free "16PF" tests online are public-domain look-alikes based on the IPIP item pool. They are fine for curiosity, but for real prep, practice the actual three-option format and understand the sten scoring.

Related on PrepClubs

• Big Five personality test practice, the modern model the 16PF global factors map onto.
• DISC personality test practice for another common hiring assessment.
• Myers-Briggs test for jobs and how employers actually use type results.
• Hogan assessment practice test, the personality battery most used for leadership roles.

Prepare with a plan, not a panic

Personality tests reward calm, consistent, honest answering, and that is easier when you have practiced the format and understand what each factor signals. PrepClubs has helped more than 1,600 students prepare for cognitive and personality assessments. You get free practice questions to get comfortable with the formats before the real thing, then full timed sets and score interpretation when you upgrade. If you prepare with PrepClubs and do not pass your real test, we extend your access at no extra cost. No fine print, no satisfaction-guarantee hedge. You get more time with the material, free. Start practicing personality tests on PrepClubs.