Level of Personality Functioning Scale: What the LPFS Measures

Author: Ukrainian Psychological Hub · Published: October 13, 2026 · Editorial Policy

The Level of Personality Functioning Scale (LPFS) is a clinician-rated framework for describing the severity of problems in a person's sense of self, ability to pursue meaningful goals, understanding of other people, and capacity for close, reciprocal relationships. It is the measure of Criterion A in the DSM-5 Alternative Model for Personality Disorders (AMPD). The scale describes five levels of impairment, from 0 (little or none) through 4 (extreme), across four domains: identity, self-direction, empathy, and intimacy. It helps clinicians understand how personality-related difficulties affect everyday life, formulate a case, and consider treatment priorities. An LPFS rating is one component of professional assessment, not a stand-alone diagnosis or a measure of personal worth. Sharp and Wall's clinical review explains why severity of personality functioning has become central to dimensional models.

The most useful question addressed by the LPFS is how deeply and consistently difficulties in self and interpersonal functioning affect a person's life. It does not determine a personality disorder subtype by itself, reveal the cause of a problem, or decide whether a particular relationship is healthy. Readers who want the broader concept can consult personality functioning: identity, self-direction, empathy, and intimacy; this article focuses specifically on what the measurement framework asks, how ratings are obtained, and how to interpret their limits.

What Is the Level of Personality Functioning Scale?

The LPFS is a structured clinical description of the degree of impairment in personality functioning. It was developed as part of the alternative diagnostic model included in Section III of DSM-5 and retained in the DSM-5-TR alternative framework. Its four elements organize a clinician's assessment of the person's relationship to the self and to other people. They are rated through the pattern, flexibility, and severity of functioning over time rather than through a single striking symptom. The underlying proposal emerged from reviews of existing measures of personality organization and self–other functioning, including Bender, Morey, and Skodol's foundational review.

The alternative model separates Criterion A, the level of self and interpersonal dysfunction, from Criterion B, the configuration of maladaptive personality traits. The distinction is conceptually important. Two individuals may experience comparably serious impairment in identity, goals, empathy, or intimacy while showing different trait patterns; the reverse is also possible. A personality trait describes a recurring tendency, whereas the LPFS evaluates the quality and consequences of important adaptive capacities. See the clinical distinction between personality disorders and personality traits.

The familiar ten personality-disorder categories and historical Clusters A, B, and C remain part of the traditional DSM-5-TR categorical approach. The LPFS belongs specifically to the separate AMPD framework. It should not be described as a universal mandatory test for every DSM-5-TR diagnosis or as the diagnostic scoring system of ICD-11. The American Journal of Psychiatry's clinical application of the AMPD describes how the LPFS fits into a broader clinical evaluation.

The Four Domains and Twelve Clinical Indicators

The LPFS covers two broad dimensions: self functioning (identity and self-direction) and interpersonal functioning (empathy and intimacy). Each of the four domains is represented by three more specific indicators. The domains support nuanced questions about patterns of functioning; clinical ratings integrate information rather than using a casual tally of isolated behaviors. The original twelve-indicator structure is detailed in Hummelen and colleagues' psychometric examination of SCID-5-AMPD-I.

Identity: Continuity of Self, Self-Appraisal, and Emotional Experience

Identity refers to an experience of oneself as a distinct person with reasonably coherent boundaries, a workable and proportionate sense of self-esteem, and the capacity to experience and regulate emotions. Clinicians explore whether people can describe their values and personal qualities with some continuity, whether views of the self shift drastically under stress, and whether criticism, achievement, or a changed relationship leads to extreme disruption in self-appraisal.

The three indicators concern (1) awareness of oneself as unique with boundaries between self and other, (2) stability of self-esteem and accuracy of self-appraisal, and (3) capacity to experience, tolerate, and regulate a range of emotions. For example, a person's intense grief after bereavement may disrupt self-esteem and affect regulation, yet the clinical meaning depends on context, developmental history, duration, pervasiveness, and recovery. The LPFS is intended to assess the enduring functional pattern, not to pathologize ordinary emotional pain.

Self-Direction: Goals, Standards, and Reflective Capacity

Self-direction concerns the ability to formulate and pursue coherent, meaningful short- and long-term goals; act according to constructive internal standards; and reflect on experience to make useful adjustments. The three indicators address (1) goal pursuit, (2) behavioral standards, and (3) productive self-reflection. Clinicians may ask how someone makes choices when goals conflict, what guides behavior in difficult situations, and whether feedback can be considered without an overwhelming loss of coherence.

Changes in employment, poverty, disability, discrimination, caregiving duties, and unfamiliar social systems can all restrict goal pursuit. A careful rating distinguishes limitations imposed by circumstances from persistent difficulties in organizing and directing the self. High ambition, unconventional values, a career change, or temporary uncertainty about the future does not establish self-direction impairment. The focus is the person's ability to maintain and flexibly revise personally meaningful commitments.

Empathy: Perspective-Taking and Understanding Impact

Empathy in the LPFS refers to understanding and appreciating the experiences and motivations of others, tolerating different points of view, and recognizing the effects of one's behavior on other people. These are its three indicators. The domain is broader than visible kindness and cannot be reduced to whether a person agrees with someone else's feelings. A clinician considers how the person understands interpersonal misunderstandings, revises interpretations when new information becomes available, and responds to evidence that their actions have affected someone.

Empathic functioning is sensitive to emotional arousal, trauma-related threat, neurodevelopmental communication differences, cultural expectations, and the safety of the relationship. A person's refusal to reconcile after abuse, difficulty interpreting ambiguous social cues, or firm personal boundary is not sufficient evidence of pathological empathy impairment. Contextual evaluation prevents interpersonal ratings from becoming moral judgments.

Intimacy: Sustained Connection and Reciprocity

Intimacy concerns the depth and durability of relationships, a person's desire and capacity for closeness, and mutuality of regard in interpersonal behavior. Its three indicators examine the capacity to form and sustain meaningful attachments, tolerate appropriate closeness and separateness, and take part in relationships in which both people's needs have psychological reality.

The LPFS does not prescribe marriage, partnership, a particular number of friends, sexual activity, or an extroverted lifestyle. A person may live alone, prefer limited social contact, or choose particular forms of connection while functioning well. Ratings consider the person's goals, opportunity, culture, history, and whether any difficulties are persistent, inflexible, and consequential. The concept is expanded in the English Hub's personality functioning overview.

LPFS Levels 0–4: What the Severity Ratings Mean

The original clinician-rated LPFS uses an ordered five-level continuum. Lower numbers indicate relatively intact adaptive functioning; higher numbers indicate more substantial impairment in the relevant capacities. These anchors are descriptive judgments informed by interview and clinical evidence. They are not percentages, personality labels, IQ-like scores, or a universal prediction of the future. The official model's level structure is presented in the alternative DSM-5 model overview in Focus.

Level 0 — Little or No Impairment

The person generally maintains a coherent sense of self, realistic self-appraisal and goals, a capacity to reflect on experience, and mutual relationships while managing ordinary stresses. This level permits occasional interpersonal mistakes, difficult feelings, and periods of uncertainty. Healthy functioning describes flexibility and adequate adaptation across circumstances, not perfection.

Level 1 — Some Impairment

Mild but noticeable inconsistencies may appear in self-esteem, boundaries, pursuit of goals, perspective-taking, or relationships, particularly during stress. Individuals can often sustain major life roles and adapt with time, although recurring problems may impose costs. A Level 1 rating under the AMPD lies below its Criterion A personality-disorder severity threshold.

Level 2 — Moderate Impairment

Problems become more consequential for the continuity of self, direction of behavior, understanding of others, or reciprocal relationships. Difficulties may persist across settings and produce clinically important distress or impairment. In the AMPD, moderate impairment (LPFS 2) is the severity threshold used for Criterion A, but the presence of Level 2 alone does not complete a personality-disorder diagnosis: the complete model still requires assessment of Criterion B and the remaining diagnostic conditions.

Level 3 — Severe Impairment

Substantial disturbances in self-definition, goal pursuit, interpersonal interpretation, or mutual relationships may compromise multiple life areas. The presentation can include recurrent interpersonal crises or a markedly restricted capacity to adapt to changing circumstances. Actual symptoms, strengths, functioning, and risk must be evaluated individually. A Level 3 rating does not imply that every individual self-harms, behaves aggressively, experiences psychosis, or has the same prognosis.

Level 4 — Extreme Impairment

Self and interpersonal functioning may be profoundly disrupted across a broad range of situations, seriously limiting coherent self-organization, autonomy, and reciprocal relationships. The rating indicates high clinical complexity and potentially substantial support needs, with implications for comprehensive assessment and care planning. It is not a moral category, a permanent identity, or a substitute for independently evaluating immediate safety risks.

These five descriptions are interpretive summaries rather than a replacement for the detailed DSM-5 AMPD anchors. Researchers and clinicians should consult the actual copyrighted instrument and its administration guidance. An interview-based rating may combine domain observations in a global severity judgment; a five-point clinical anchor must not be confused with the sum of questionnaire item scores.

How Clinicians Assess Personality Functioning With the LPFS

An LPFS assessment ordinarily begins with a careful clinical history: reasons for seeking help, the course of symptoms, developmental and relationship experiences, current roles, crises, supports, culture, medical and psychiatric conditions, and the person's own account of what works well or poorly. Clinicians ask for concrete examples over time. They examine whether difficulties are enduring and pervasive, whether they are understandable reactions to specific conditions, and how multiple sources of information fit together. This broader process is detailed in How Are Personality Disorders Diagnosed?.

A structured interview can improve consistency. The Structured Clinical Interview for the DSM-5 Alternative Model for Personality Disorders, Module I (SCID-5-AMPD-I), targets LPFS Criterion A. The Semi-Structured Interview for Personality Functioning DSM-5 (STiP-5.1) provides another structured method, built around the relevant domains and indicators. The original STiP-5.1 validation study reported promising interrater reliability and construct validity in its sample, while Hummelen and colleagues examined the psychometric structure of SCID-5-AMPD-I.

During interviewing, a clinician may ask the person to describe how they understood a recent disagreement, what happened to their sense of self after criticism, how they evaluate conflicting goals, or how an important relationship has changed over time. Good assessment asks for behavior and lived experience in context, follows up on ambiguities, and considers alternative interpretations. The aim is a clinically grounded pattern of capacities and impairments, not a collection of provocative questions.

Where appropriate and with consent, records, prior assessments, and collateral accounts may clarify longitudinal functioning. Reports from partners, relatives, teachers, or coworkers can provide perspectives, but such accounts require consideration of bias, conflict, coercion, cultural norms, and informant access to the person's private experience. Neither an observer's allegation nor an online narrative can establish an LPFS level.

An Illustrative Example, Not a Diagnostic Rating

Imagine someone who experiences intense shame after ordinary workplace feedback, briefly doubts their ability to pursue any goals, and finds it difficult to hear a colleague's intentions accurately during conflict. These experiences might invite questions about identity, self-direction, and empathy. The clinician would still need to establish whether the reactions are part of an enduring, cross-situational pattern, whether they occur during a depressive episode, whether a hostile workplace explains them, and how the person functions in safer relationships. A single story cannot be translated into Level 1, 2, or 3.

Another person may be confident at work but struggle with sustaining mutual relationships while living under an ongoing threat. The same outward behavior might reflect a context-specific protective response. The LPFS encourages discussion of domains, but accurate use requires developmental understanding and differential diagnosis rather than scoring an observer's impression.

What Does an LPFS Score Mean for Diagnosis?

Criterion A asks whether there is moderate or greater impairment in personality functioning as conceptualized by the AMPD. Criterion B addresses pathological traits; other general conditions include relative stability, pervasiveness, the need to consider developmental and sociocultural context, and exclusion of explanations better attributable to another mental disorder, substances, or a medical condition. The LPFS is therefore a severity component within a larger diagnostic formulation. The clinical AMPD application paper explains its stepwise purpose.

A clinician may find substantial difficulty in one part of functioning without concluding that the person has a personality disorder. A difficult period, a depression, prolonged trauma-related disturbance, an unsafe relationship, or a developmental transition can produce significant problems with self-esteem, emotions, goals, or relationships. The clinical task is to determine their origin, duration, flexibility, and relationship to other conditions and contexts.

The LPFS also does not distinguish borderline, narcissistic, avoidant, obsessive-compulsive, or antisocial personality disorder by itself. Severity of self and interpersonal dysfunction can be relevant across conditions, while diagnosis requires a fuller symptom and trait picture. It is clinically unsound to infer someone's diagnosis from a numerical level or from how challenging another person finds the relationship.

LPFS, LPFS-SR, LPFS-BF 2.0, STiP-5.1, and PID-5: Important Differences

Original Clinician-Rated LPFS

The original LPFS is the descriptive five-level Criterion A framework. A trained clinician uses the anchors to make a judgment about impairment based on clinically adequate information. It is frequently discussed in connection with structured interviews; the clinician must not assume every questionnaire labeled LPFS yields an interchangeable 0–4 global rating.

LPFS-SR and Other Self-Report Measures

The LPFS-Self-Report (LPFS-SR) asks respondents about experiences relevant to the framework. Its validation in three large community samples found evidence of reliability and convergent validity, alongside a substantial common factor across domains. Such findings support research and screening applications, but the interpretation still depends on the specific instrument, population, and response process. Self-report requires personal insight; scores can also be influenced by distress, social desirability, comprehension, and how items are understood.

LPFS-Brief Form 2.0

The LPFS-BF 2.0 is a short self-report form designed to efficiently capture difficulties related to personality functioning. It is not the same thing as the interview-based five-level LPFS. A 2025 study by Ran and colleagues found promising factor-analytic, validity, and classification results in specified young-adult and mixed college/clinical samples. That study evaluated a possible cutoff against a particular interview reference; it did not establish a universal diagnostic threshold that readers can apply across all ages, cultures, languages, or settings. Reported numerical cutoffs should never be silently transferred between versions of instruments.

STiP-5.1 and SCID-5-AMPD-I

These are clinician-administered interview approaches for evaluating Criterion A, using structured prompts and rating guidance. Evidence includes the initial STiP-5.1 study, a Czech replication, and the SCID-5-AMPD-I psychometric analysis. These studies support their usefulness while documenting differences across samples, subdomains, raters, and analytic methods. Training and clinical judgment matter.

PID-5: Pathological Traits, Not LPFS Functioning

The Personality Inventory for DSM-5 (PID-5) evaluates maladaptive personality traits associated with Criterion B. It is conceptually distinct from the LPFS, even though their scores tend to correlate. For example, a 2025 meta-analysis covering 44 studies and 47 independent samples found moderate-to-large average associations between LPFS measures and PID-5 traits, raising important questions about overlap and the boundaries between severity and trait descriptions. A high trait score is not a substitute for assessment of personality functioning or a clinical diagnosis.

Specialized questionnaires for adolescents also exist, including the Levels of Personality Functioning Questionnaire for ages 12–18. Their norms, validity evidence, developmentally appropriate interpretation, and clinical use differ from those of adult instruments. Evidence for a specific questionnaire cannot be assumed to validate every measure sharing the phrase 'personality functioning.' Kerr and colleagues' work illustrates age-specific instrument development.

What Does the Research Say About Reliability and Validity?

Research generally supports the clinical relevance of self and interpersonal dysfunction as a broad severity dimension. Sharp and Wall's 2021 review synthesizes the construct's development and measurement; several interview and self-report validation studies report associations with clinical impairment and related personality pathology. These findings indicate that personality functioning can be measured usefully, while leaving several important psychometric and diagnostic questions open.

Agreement Between Clinicians

Interrater reliability asks whether different evaluators assessing the same person arrive at similar ratings. A 2023 meta-analysis of Criterion A interrater reliability found tentative support for overall LPFS and domain reliability, but also considerable heterogeneity. The analysis suggested that dedicated structured interviews could improve agreement. Some earlier interview studies reported weaker agreement: a pilot study of clinical LPFS ratings warned against treating one interview as a sufficient stand-alone basis for an individual-level conclusion.

Construct Validity and Incremental Information

Construct validity asks whether the ratings reflect the capacities they claim to measure and relate to external functioning as theory predicts. Studies have found meaningful convergence among functioning ratings, broad personality pathology, maladaptive traits, and interpersonal difficulties. Yet stronger convergence is not automatically proof of unique information: Criterion A and Criterion B overlap, and a broad distress or psychopathology factor may explain part of their association. Thimm's 2025 meta-analysis documents such overlap rather than establishing perfect separation.

A further difficulty concerns methods. Questionnaires require respondents to recognize and report their own difficulties; interviews depend on examples, interviewing skill, and rater inference. Cruitt and colleagues' life-story interview study explored a different rating method precisely because existing interview and self-report approaches have potentially different biases. The best interpretation takes into account the purpose and limitations of the method actually used.

General Severity Versus Four Separate Profiles

The four domains carry useful clinical meaning, but research frequently finds a strong general factor across them. That means a total or global judgment may summarize much of the shared variance, while profiles of identity, goals, empathy, and intimacy can help clinicians formulate concrete treatment goals. Researchers continue to examine when domain scores provide reliable added value beyond overall severity. Detailed individual profiles should not be treated as psychometrically precise unless the chosen instrument and sample support that interpretation.

Cutoffs, Populations, and Transferability

Validity can differ between community, outpatient, inpatient, forensic, adolescent, and culturally diverse samples. A screening cutoff that distinguishes selected groups in one validation study may perform differently when prevalence, referral patterns, language, and developmental characteristics change. The 2025 LPFS-BF 2.0 study contributes evidence for a specific brief form and sample; it cannot replace independent validation or a qualified evaluation. This distinction is essential when reading online score interpretations.

LPFS Versus ICD-11 Personality Disorder Severity

DSM-5-TR's alternative model and WHO's ICD-11 both emphasize degrees of personality dysfunction and the relevance of maladaptive traits. Their diagnostic rules and level labels nevertheless differ. The LPFS uses the AMPD's 0–4 impairment anchors. ICD-11 identifies personality difficulty below the disorder threshold, then mild, moderate, or severe personality disorder, with possible trait-domain and borderline-pattern qualifiers. WHO's 2024 ICD-11 Clinical Descriptions and Diagnostic Requirements is the authoritative classification reference.

Researchers have proposed approximate conceptual crosswalks from LPFS Levels 0–4 to ICD-11 severity categories. These comparisons are useful for explaining related constructs, but they are not an automatic one-to-one patient conversion. ICD-11 explicitly considers breadth of dysfunction, consequences, and risk, and its diagnostic decision should be made under its own guidelines. Bach and Anderson's comparative study found that questionnaire approaches oriented toward the two systems could emphasize different aspects of dysfunction.

Clinicians must also distinguish personality difficulty, a subthreshold ICD-11 description, from an official personality-disorder diagnosis. Readers can find the broader diagnostic context in the personality disorders overview.

Important Clinical and Cultural Safeguards

Assessment Must Be Longitudinal and Contextual

Personality functioning changes with development, relationships, health, stress, and treatment. A clinician seeks information about typical and recurring patterns rather than treating an acute crisis or isolated interaction as a lifelong trait. Interviews should consider age, language, migration, family expectations, disability, cultural norms about autonomy and intimacy, and real barriers to opportunity. Standardized tools provide a shared vocabulary but do not erase social context.

Differential Diagnosis Matters

Depression may diminish self-esteem, motivation, and social engagement. Trauma-related hypervigilance can change perspective-taking and intimacy in contexts involving threat. Mania, substance effects, psychotic symptoms, and severe anxiety may also alter functioning, sometimes markedly. ADHD and autism require developmentally informed evaluation rather than a quick conclusion based on relationships or self-direction. Differential work may identify co-occurring problems as well as alternative explanations. The relevant clinical boundary is developed in personality disorders versus trauma responses.

A Rating Does Not Measure Character or Human Value

An LPFS level describes the extent of clinically relevant functioning difficulties under a defined assessment model. It does not rank morality, deserve punishment, certify empathy in all situations, establish parenting fitness, or establish whether someone is a trustworthy partner. High or low scores cannot resolve accusations made in family, legal, employment, or romantic conflict. Labeling another person from a checklist can compound stigma and obscure more direct descriptions of harmful or unsafe behavior.

Risk Assessment Is Separate

Although greater personality pathology severity can be associated with greater clinical complexity and certain adverse outcomes at a group level, a person's risk of self-harm, suicide, aggression, or acute decompensation requires an individualized assessment of current thoughts, behavior, history, protective factors, and circumstances. The LPFS is not a suicide-risk or violence-prediction instrument. Immediate clinical risk is managed through appropriate professional assessment and crisis services, irrespective of LPFS level.

How LPFS Findings Can Help Treatment Planning

A thoughtful formulation converts a general severity rating into testable, collaborative clinical goals. If identity functioning is particularly affected, care might address emotional regulation, stable self-understanding, and tolerating conflicting self-appraisals. If self-direction is a prominent difficulty, treatment may address values, goal consistency, and reflection. If empathy or intimacy are affected, work may focus on perspective-taking, rupture and repair, interpersonal expectations, boundaries, or mutuality. These are illustrations of formulation, not prescriptions attached mechanically to each level.

LPFS information may also help clinicians plan the structure, intensity, and coordination of services, identify domains of strength, and evaluate meaningful functional change alongside symptoms and quality of life. Hutsebaut and Bender's treatment-utility review discusses the practical clinical use of the framework. Evidence supporting therapies for particular personality disorders cannot automatically be generalized to every condition or every person at a given LPFS level.

For the patient, useful feedback should translate the rating into ordinary language and shared priorities. It should explain what observations contributed to the judgment, which uncertainties remain, what existing capacities may help recovery, and how improvement will be evaluated. A person's self and interpersonal functioning can change; the scale is most useful when it directs attention to achievable functioning goals, rather than a fixed diagnostic identity.

What to Ask a Clinician About an LPFS Assessment

A person receiving LPFS feedback can ask which assessment approach was used, whether the result came from a structured clinical interview or self-report questionnaire, what each domain rating means, and which concrete situations were considered. Further useful questions include whether current depression, trauma exposure, neurodevelopmental differences, medical conditions, or environmental stressors were evaluated; whether the diagnosis depends on additional criteria; and what kinds of change or support would indicate progress.

If a report contains only a numerical result, request an explanation of the scale, its version, the population for which it is validated, and how the clinician reached the conclusion. For an online quiz or downloadable self-report result, treat the score as a possible discussion starter. The guide to personality disorder screening tests explains why screening scores and clinical diagnoses must be kept separate.

Frequently Asked Questions

Is the LPFS a personality disorder test?

It is a framework for clinician-rated severity of self and interpersonal dysfunction within the DSM-5 AMPD. Some related questionnaires function as self-report assessment or screening measures. A diagnosis requires substantially more than one LPFS rating or questionnaire result.

What are the four LPFS domains?

Identity and self-direction describe self functioning; empathy and intimacy describe interpersonal functioning. Each domain contains three more specific indicators, producing twelve indicators in the original formulation.

What does an LPFS score of 2 mean?

Within the original AMPD's five-level clinical rating, Level 2 represents moderate impairment and is the Criterion A severity threshold. It does not independently diagnose a personality disorder, and it must not be confused with a score of 2 on an unrelated questionnaire.

Can someone have significant LPFS difficulties without a personality disorder?

Yes. Similar difficulties may arise in other mental health conditions, periods of severe stress, developmental transitions, medical illness, or unsafe environments. Clinicians investigate pattern, duration, severity, context, and competing explanations.

Is LPFS the same as the PID-5?

No. LPFS concerns severity of personality functioning (Criterion A); PID-5 assesses maladaptive traits relevant to Criterion B. They are related but serve different clinical and research purposes.

Can I take the LPFS online and diagnose myself?

Self-report measures related to LPFS may be available, but their scores are not equivalent to the clinician-rated five-level assessment. Online interpretations often ignore instrument version, norms, developmental context, and differential diagnosis. Use concerns or test results as prompts for a professional conversation.

Does Level 3 or 4 mean someone will never recover?

No. Severity ratings describe functioning at an assessment period and may indicate complex clinical needs; they are not fixed predictions. Prognosis and treatment response depend on the individual, environment, access to care, co-occurring conditions, and the outcomes being assessed.

Is the LPFS used in ICD-11?

The LPFS belongs to the DSM-5 alternative model. ICD-11 uses a related but distinct severity-based classification of personality disorder. Clinicians applying ICD-11 should use its diagnostic requirements rather than equating LPFS numbers with ICD-11 categories.

How long does an LPFS assessment take?

The LPFS itself defines rating anchors; time depends on the method and the complexity of the case. Structured interviews such as STiP-5.1 can be relatively brief in research settings, while a full differential diagnostic evaluation may require additional appointments, history, records, and clinical judgment.

Can LPFS be used for teenagers?

Adolescent personality-functioning measures have been studied, but age, developmental change, informant context, and validation evidence must guide use. Adult LPFS assumptions and cutoffs should not be applied mechanically to a young person.

Related Articles

For diagnostic context, see Personality Disorders: Types, Symptoms, Diagnosis, and Treatment, How Are Personality Disorders Diagnosed? The Clinical Assessment Process, and Personality Functioning: Identity, Self-Direction, Empathy, and Intimacy.

For adjacent clinical distinctions, see Personality Disorder Screening Tests: What Scores Can and Cannot Tell You, Personality Disorders vs Personality Traits: Clinical Differences, and Personality Disorders vs Trauma Responses: How Clinicians Differentiate.

SCID-5-PD Interview: What a Personality Disorder Assessment Involves

PID-5 Personality Inventory: Maladaptive Traits and Interpretation

References

American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR). American Psychiatric Association Publishing. Official DSM resource.

Bach, B., & Anderson, J. L. (2020). Patient-reported ICD-11 personality disorder severity and DSM-5 level of personality functioning. Journal of Personality Disorders, 34(2), 231–249. https://doi.org/10.1521/pedi_2018_32_393.

Bender, D. S., Morey, L. C., & Skodol, A. E. (2011). Toward a model for assessing level of personality functioning in DSM-5, part I: A review of theory and methods. Journal of Personality Assessment, 93(4), 332–346. https://doi.org/10.1080/00223891.2011.583808.

Cruitt, P. J., Boudreaux, M. J., King, H. R., Oltmanns, J. R., & Oltmanns, T. F. (2019). Examining criterion A: DSM-5 level of personality functioning as assessed through life story interviews. Personality Disorders: Theory, Research, and Treatment, 10(3), 224–234. https://doi.org/10.1037/per0000321.

Hummelen, B., et al. (2021). A psychometric analysis of the Structured Clinical Interview for the DSM-5 Alternative Model for Personality Disorders Module I (SCID-5-AMPD-I): Level of Personality Functioning Scale. Assessment. https://doi.org/10.1177/1073191120967972.

Hutsebaut, J., & Bender, D. S. (2024). The clinical utility of the Level of Personality Functioning Scale: A treatment perspective. Journal of Psychiatric Practice, 30(6), 411–420. https://doi.org/10.1097/PRA.0000000000000822.

Hutsebaut, J., Kamphuis, J. H., Feenstra, D. J., Weekers, L. C., & De Saeger, H. (2017). Assessing DSM-5-oriented level of personality functioning: Development and psychometric evaluation of the Semi-Structured Interview for Personality Functioning DSM-5 (STiP-5.1). Personality Disorders: Theory, Research, and Treatment, 8(1), 94–101. https://doi.org/10.1037/per0000197.

Kerr, S., McLaren, V., Cano, K., Vanwoerden, S., Goth, K., & Sharp, C. (2023). Levels of Personality Functioning Questionnaire 12–18 (LoPF-Q 12–18): Factor structure, validity, and clinical cutoffs. Assessment, 30(6), 1764–1776. https://doi.org/10.1177/10731911221124340.

Ran, T., Balzen, K. M., Kerr, S., Hutsebaut, J., & Sharp, C. (2025). Level of Personality Functioning Scale–Brief Form 2.0: Factor structure and clinical cutoffs. Journal of Personality Disorders, 39(3), 185–205. https://doi.org/10.1521/pedi.2025.39.3.185.

Sharp, C., & Wall, K. (2021). DSM-5 level of personality functioning: Refocusing personality disorder on what it means to be human. Annual Review of Clinical Psychology, 17, 313–337. https://doi.org/10.1146/annurev-clinpsy-081219-105402.

Thimm, J. C. (2025). The associations between personality functioning (Criterion A) and pathological personality traits (Criterion B) in the alternative model for personality disorders in DSM-5: A meta-analysis. Frontiers in Psychiatry, 16, 1673139. https://doi.org/10.3389/fpsyt.2025.1673139.

World Health Organization. (2024). Clinical descriptions and diagnostic requirements for ICD-11 mental, behavioral and neurodevelopmental disorders. WHO publication.

Young, S. E., & Beazley, P. (2023). Interrater reliability of Criterion A of the Alternative Model for Personality Disorder (DSM-5 Section III): A meta-analysis. Personality Disorders: Theory, Research, and Treatment, 14(6), 613–624. https://doi.org/10.1037/per0000631