Free pathological liar test: What makes lying pathological, types and signs

Key takeaways

The downloadable pathological liar test is a nine-statement screening form, rated from 1 (strongly disagree) to 7 (strongly agree).

Pathological lying is not a DSM-5 diagnosis, so treatment targets the personality, mood, or trauma pattern sitting underneath it.

The signs worth chasing are a history that shifts between sessions and elaborate lies told with nothing to gain.

Adding the nine ratings gives a total between 9 and 63. Divide that by nine to read it against the published Pathological Lying Inventory.

Practice management software like Pabau files the completed form and its total in the client record, so you can compare sessions.

A pathological liar test you find online usually scores you in a pop-up and never prints what the number means. This page does the opposite. You get the nine-statement form as a PDF, plus a table that maps its total onto the published Pathological Lying Inventory. A second table separates pathological, compulsive, habitual, and ordinary white-lie behavior.

The form is written for clinicians, and it gives you a structured way to raise chronic lying without accusing anyone. Some patients lie so often, and with so little to gain, that the dishonesty becomes the clinical problem itself. It strains the working relationship and clouds every history you take.

Below you will find the signs, the causes, the scoring bands, and the treatment routes. You will also see how the nine statements differ from the 19-item Pathological Lying Inventory, and where screening fits inside a structured clinical evaluation.

What makes lying pathological

A pathological liar is someone who lies chronically and compulsively, often with no benefit and no outside pressure to do it. That pathological liar meaning is narrower than everyday use, which stretches to anyone caught in a big lie.

The lying runs across contexts and relationships rather than showing up in one corner of life. It causes the person distress and damages how they function with other people.

Critical clinical distinction: pathological lying is not a standalone diagnosis in the DSM-5. It shows up instead as a symptom cluster attached to other conditions, tracked over time in a mental health electronic medical record (EMR). Research links it to antisocial, narcissistic, and borderline personality disorder, and to some mood and anxiety disorders.

The Pathological Lying Inventory (PLI) is the main published measure in this area. Hart, Curtis, and Terrizzi reported its development and validation in Current Psychology in 2024. The final version has 19 items, each rated from 1 (strongly disagree) to 7 (strongly agree).

Those items load onto three factors: excessive lying, social dysfunction, and distress. The PLI is scored by averaging the items rather than adding them up. Its authors describe an average of 4 or higher as suggesting possible pathological lying.

The test you can download here is shorter and separate from that instrument. Its nine questions work as a structured conversation starter at intake. It is not the validated PLI, and it does not carry the PLI’s norms or cutoff.

Labels overlap here, which matters when you read another clinician’s notes. Another word for compulsive liar is pathological liar, and the two get used interchangeably. Every compulsive liar synonym below carries a slightly different shade of meaning.

• Mythomania: an older clinical term for pathological lying, now uncommon in DSM-5 practice.
• Pseudologia fantastica: lies that are elaborate and internally consistent, often believed by the person telling them.
• Compulsive lying: lying driven by internal impulse rather than external reward. The person often reports being unable to stop.

How compulsive, habitual, and pathological lying differ

Pathological liar vs compulsive liar comes down to what drives the lie. A pathological liar is usually chasing something, whether that is status, control, or escape from a consequence. A compulsive liar lies on impulse and often cannot say why afterward.

That distinction sits inside a wider spectrum. Compulsive liar vs pathological liar vs habitual liar is a three-way comparison, and the ordinary white-lie teller belongs on the same scale. The table below sets all four out on five dimensions.

The rows blur in practice. One patient can show pathological and compulsive features in the same session. Impulsive vs compulsive liar is a related distinction worth holding onto. Impulsive lying is a one-off reaction under pressure, while compulsive lying repeats even when nothing is at stake.

Those drivers point to different entry points for treatment. Pathological presentations usually need work on the underlying personality traits, plus time spent building motivation. Compulsive presentations respond better to impulse-control techniques and treatment of the anxiety underneath.

What matters for screening is the scope of the pattern and how the patient experiences it. The nine statements on the downloadable form ask about both.

Signs of pathological lying to watch for in session

The clearest pathological liar signs are a history that changes between sessions and elaborate stories told with nothing to gain. Denial when you point out the contradiction is the third.

Standard ways to tell if someone is lying, such as watching for broken eye contact or fidgeting, do not hold up in research. Chronic patterns across sessions are far more reliable than any single tell.

Pathological liar symptoms often go unrecorded because patients conceal well and clinicians rarely ask directly. Clinician burnout and assessment time pressure make thorough screening harder still. These are the red flags that warrant a closer look.

• Inconsistent history: the account of past events, relationships, or treatments changes across sessions without a plausible explanation.
• Elaborate fabrications: stories are detailed and internally consistent, sometimes believed by the patient, which makes them hard to reality-test.
• No external incentive: the lies persist even when there is no obvious gain in status, money, or avoided punishment.
• Denial under gentle confrontation: when you name an inconsistency, the patient rationalizes the contradiction rather than acknowledging the shift.
• Relational fallout: family, friends, or previous therapists report broken trust, feeling manipulated, or withdrawing from the relationship.
• Distress about the behavior: some patients report feeling unable to control the lying, feeling guilty afterward, or watching it damage their life.
• Pseudologia fantastica features: the lies are unnecessarily elaborate when a simpler truth would do. That points to gratification from the fabrication itself.

Two pathological liar examples show how differently this presents. One patient describes a graduate degree, a former employer, and a bereavement that no record supports. The account repeats word for word across four sessions.

Another admits inventing a minor illness to leave work early, cannot say why, and is visibly ashamed. The first points toward personality pathology. The second points toward impulse and shame, and it usually responds faster to treatment.

Where chronic lying comes from

Pathological liar causes cluster into three areas: personality structure, early relational trauma, and a low tolerance for shame or confrontation. Neurobiology and comorbid conditions sit on top of those.

Naming the driver changes what you do next. A patient lying to escape shame needs a different plan from one who enjoys the deception.

• Personality organization: antisocial, narcissistic, and borderline structures involve distorted self-image, entitlement, or identity diffusion. Chronic dishonesty becomes a way of coping with that.
• Early relational trauma: abuse, neglect, or parental dishonesty can normalize lying and build learned patterns of self-protection through deception.
• Neurobiological factors: some research suggests differences in prefrontal function, which governs impulse control, and in limbic reactivity, which governs emotional regulation.
• Low distress tolerance: the patient lies to dodge anxiety, shame, or confrontation in the moment. The relief is immediate, so the behavior sticks.
• Reward-seeking: some people find successful deception reinforcing in itself, which makes the lying self-sustaining.
• Comorbid psychiatric conditions: depression with shame avoidance, anxiety disorders, and attention-deficit disorder all co-occur with lying patterns.

Explore these domains without judgment during assessment. Comprehensive patient care documentation covering developmental history, trauma screening, and comorbidity will sharpen your formulation and guide treatment.

What is on the form: Nine statements and one score

The downloadable form is a single page. It opens with fields for the patient’s name and the date of the test. Nine statements follow, and a total score box closes the form.

Every statement uses the same seven-point rating scale. It runs from strongly disagree (1) at one end to strongly agree (7) at the other. The midpoint is neither agree nor disagree (4). The remaining points are disagree (2), somewhat disagree (3), somewhat agree (5), and agree (6).

These are the nine statements the patient responds to.

1. I often find myself telling lies, even when there is no clear reason to do so.
2. I feel guilty or remorseful after lying.
3. I believe that I am better than others at deceiving people.
4. My lies have caused significant problems in my personal or professional life.
5. I feel a sense of excitement or satisfaction when successfully deceiving others.
6. There are particular situations or contexts in which I am more likely to lie.
7. I have sought professional help or counseling for issues related to lying.
8. I often embellish stories or exaggerate details in conversation.
9. I have fabricated stories about my past experiences or achievements.

The form prints no reverse-scoring rule, no subscale breakdown, and no interpretive cutoff. Two of the statements ask about guilt and about seeking help, so a high total can reflect insight as much as deception. The individual answers matter more than the number at the bottom.

Administering the test at intake

Use it inside a psychiatric or psychological evaluation, never as a self-diagnosis quiz. Its statements cover how often the patient lies, how they feel afterward, and what the lying has cost them.

1. Introduce the purpose: frame the screening during intake. Try this: “I’m going to ask some questions about honesty in your life. They help me understand patterns that may be affecting your relationships or your wellbeing. Your honest answers matter here, even the difficult ones.”
2. Hand over the nine statements: give the form in a quiet, private setting with few distractions. The patient marks one option per statement, from strongly disagree (1) through to strongly agree (7). Most patients finish in under five minutes.
3. Add up the total: add the nine ratings and write the number in the total score box. The lowest possible total is 9 and the highest is 63. A total of 9 means the patient rejected every statement.
4. Document the answers, not just the number: record the total, the individual ratings, and your clinical impression. Note whether the pattern looks like a primary concern or a symptom of another disorder. Digital screening questionnaires can total the score and file it against the client record for you.
5. Integrate into your formulation: use the results alongside interview data, psychiatric history, and relational patterns to build a differential diagnosis. A high total is a reason to explore personality traits, trauma history, and mood or anxiety symptoms.

Key principle: this is a screening form, not a diagnostic test. The PDF prints no cutoff score, and these nine statements carry no published norms. Treat a high total as a prompt for better questions, never as a finding on its own.

How to score and interpret your results

Add the nine ratings for a single total between 9 and 63, then divide that total by nine. The result is an item average on the same 1 to 7 lie scale the Pathological Lying Inventory uses. That gives you a reference point the form itself does not print.

The bands below are arithmetic, not a validated cutoff. They convert the total into the PLI’s item average, so a total of 36 equals an average of exactly 4. The PLI’s authors treat an average of 4 or higher as suggesting possible pathological lying.

Treat those bands as a reading aid. The nine statements are not the PLI and carry no validation study. The equivalence is arithmetic rather than psychometric.

The band is only half the read. Look next at which statements carried the weight, because two of the nine ask about guilt and help-seeking. A high total built on those items reflects insight rather than deception. The nine items fall into four groups.

These four groups are a reading aid for the clinician. They are not validated subscales, and the form does not score them separately.

Two totals in the same band can still mean different things. Strong agreement on frequency with low guilt points toward personality pathology. Strong agreement on both suggests a patient who already knows there is a problem.

If you need a validated measure: use the published Pathological Lying Inventory instead of this short form. It runs to 19 items on the same 1 to 7 scale and is scored by averaging.

Next steps after scoring: if the answers point that way, run a targeted psychiatric interview covering personality traits, trauma history, mood symptoms, and relational patterns. Consider referral for full psychological testing where the diagnosis stays unclear. Secure messaging through your client portal lets you follow up on results in a contained, documented way.

Who is this form for?

The form suits any clinician who needs to raise the subject of chronic lying without accusing the patient of anything. It gives you a neutral piece of paper to point at.

• Psychiatrists and psychologists: add it to an intake battery when the referral mentions deception, inconsistent history, or a suspected personality disorder.
• Therapists and counselors: use it when repeated contradictions in session start to affect the working alliance.
• Mental health nurses and case managers: use it to capture a baseline before a fuller psychiatric assessment is scheduled.
• Group and family practices: use it as a shared prompt so every clinician asks the same nine questions in the same way.

The form is not built for forensic or legal work, and it should not be handed to a patient as a self-diagnosis quiz. It has no validation study behind it and no norms, so any conclusion still rests on your clinical interview.

Treatment options and where each one fits

Pathological liars treatment works through the condition underneath. Cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), and motivational interviewing are the routes with the most support. No medication and no therapy targets lying on its own.

Compulsive liar treatment overlaps heavily, which is why the terminology confusion rarely changes the plan. Where the two diverge is the entry point. Impulse-control work comes first for compulsive presentations, while personality and motivation work comes first for pathological ones.

• CBT: addresses the beliefs that fuel the lying, such as shame avoidance, entitlement, and fear of rejection. It builds alternative coping strategies and tolerance for the discomfort of telling the truth.
• Treatment of comorbid conditions: lying often co-occurs with depression, anxiety, ADHD, or personality disorder traits. Treating the primary condition frequently reduces the lying as well.
• DBT: useful for borderline presentations with lying. It targets emotion regulation, distress tolerance, and interpersonal effectiveness.
• Motivational interviewing: explores ambivalence about dishonesty and builds discrepancy between the lying and the patient’s own values.
• Relational therapy: works on the ruptures dishonesty causes in the alliance. Rebuilding trust inside therapy models what honesty could look like elsewhere.
• Medication as an adjunct: where depression, anxiety, or impulse-control issues co-occur, treating those symptoms can reduce how often the patient lies.

Therapeutic stance matters: avoid accusatory language. Instead of “You’re lying,” try “I notice these details don’t align. Help me understand.” That names the pattern while preserving the alliance. Automated clinical notes from an AI medical scribe cut the documentation burden, which frees your attention for the therapeutic work.

Managing patient records for pathological lying presentations

Pathological lying creates a specific documentation problem. You have to record findings accurately, protect confidentiality, and keep patient self-report clearly separate from what you observed yourself.

Paper screening forms make that harder than it needs to be. The completed test sits in a folder and the score never reaches the note. Nobody can see whether item 4 was rated higher this month than last.

Practice management software like Pabau keeps the form, the total, and your notes in one client record. You can send the nine statements as a digital form before the session. The answers are then waiting in the chart when the patient sits down. Repeat the form later and you can compare both sets of answers side by side.

• Record the context, not just the score: note who administered the form, whether the patient completed it alone, and how they reacted to the questions.
• Flag inconsistencies transparently: where one session contradicts an earlier one, document it in neutral language. For example: “Patient reported X in session 1 and Y in session 5. Discussed the discrepancy in session.”
• Separate subjective and objective: mark clearly what the patient reported, what you observed, and what was corroborated by someone else.
• Track patterns over time: in an integrated therapy practice management system, tag every session where lying comes up. Recognizing the pattern over months aids diagnostic clarity.
• Keep communication secure: discuss results through an encrypted patient portal with documented messaging. That creates an audit trail and protects both of you.

Your records are your defense in ethics complaints, licensing board inquiries, or malpractice claims. Thorough, objective documentation of these presentations shows clinical competence and protects the therapeutic relationship.

Keep screening forms and clinical notes in one record

Pabau is practice management software for mental health practices. Send the pathological liar test as a digital form and capture the total against the client record. Pull it up next to your notes at the next session.

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Conclusion

Pathological lying usually sits on top of something else, whether that is personality structure, mood, or old trauma. Screen for it, then spend your effort on what the screening points at. The nine statements are the opening question, not the answer.

Keep the number in proportion. The bands on this page convert the total into the PLI’s scale, but they are arithmetic rather than a validated threshold. A high total earns a better interview, nothing more.

Want those nine statements scored, filed, and sitting beside your treatment notes? Book a demo and we will show you how Pabau keeps screening results and clinical notes in the same client record.

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