Positive and Negative Suicide Ideation (PANSI)

1. Abstract

The Positive and Negative Suicide Ideation (PANSI) inventory is a pioneering, 14-item self-report clinical instrument designed to assess both suicidal risk manifestations and protective resilience cognitions occurring over the preceding two weeks. Developed by Augustine Osman and colleagues (1998, 2002, 2003), the instrument addresses a critical historical omission in clinical suicidology: the operationalization of positive cognitions and psychological buffers against self-harm alongside conventional indicators of suicidal desperation. The PANSI is structurally divided into two distinct, orthogonal or negatively correlated dimensions: the 8-item Negative Suicide Ideation (PANSI-NSI) subscale, which captures active suicidal thinking, cognitive surrender, interpersonal thwartedness, and perceived burdensomeness; and the 6-item Positive Suicide Ideation (PANSI-PSI) subscale (frequently operationalized as protective life-affirming ideation), which quantifies optimism, self-efficacy, perceived situational agency, and the cognitive valuation of life. Respondents rate all items using a 5-point Likert-type frequency scale ranging from 1 (None of the time) to 5 (Most of the time).

Extensive psychometric investigations across diverse clinical (e.g., adolescent psychiatric inpatients, outpatient adults) and nonclinical populations (e.g., university undergraduates, high school adolescents) confirm that the PANSI possesses an exceptionally robust two-factor latent structure. Confirmatory factor analyses consistently substantiate that a two-factor oblique model offers superior fit compared to single-factor or multidimensional risk-only models. Internal consistency estimates across studies remain consistently elevated, with Cronbach’s alpha ($α$) and McDonald’s omega ($ω$) values typically exceeding .88 to .96 for PANSI-NSI, and .80 to .89 for PANSI-PSI. Furthermore, the PANSI demonstrates rigorous convergent, discriminant, and incremental criterion-related validity, predicting suicidal behavior and distinguishably indexing clinical severity over and above standalone indices of depression, hopelessness, and general anxiety.

2. Keywords

Positive and Negative Suicide Ideation, PANSI, suicidology, suicide risk assessment, protective factors, psychological resilience, psychometrics, confirmatory factor analysis, suicidal cognition, adolescent psychiatry

3. Authors

The primary development and empirical validation of the PANSI were led by Augustine Osman, Ph.D., Professor of Psychology, who has served at institutions including the University of Northern Iowa and the University of Texas at San Antonio. Dr. Osman is a globally recognized psychometrician and clinical psychologist specializing in the quantitative assessment of internalizing disorders, suicide risk trajectories, and affective vulnerabilities.

Prominent co-investigators and contributing researchers in the initial instrument development, clinical inpatient validation, and adolescent standardization programs include:

• Francisco X. Barrios, Ph.D. — Department of Psychology, University of Northern Iowa.
• Peter M. Gutierrez, Ph.D. — Veteran Affairs Eastern Colorado Health Care System, VISN 19 Mental Illness Research, Education and Clinical Center (MIRECC), and University of Colorado School of Medicine; internationally renowned expert on adolescent suicide prevention and risk screening.
• Beverly A. Kopper, Ph.D. — Clinical psychologist and academic administrator who contributed substantially to the psychometric validation in adolescent inpatient and outpatient clinical settings.
• Courtney L. Bagge, Ph.D., J. J. Wrangham, M.A., R. S. Truelove, M.A., and S. C. Linden, M.A. — Co-investigators on validation trials across adolescent psychiatric inpatient cohorts and adolescent community samples.

4. Purpose

The historical landscape of clinical suicidology was long dominated by deficit-centric assessment models. Conventional diagnostic inventories—such as the Beck Scale for Suicide Ideation (BSS) or the Suicidal Behaviors Questionnaire (SBQ)—were structured almost exclusively to measure the presence, frequency, and lethality of negative thoughts, planning, and death-oriented behaviors. However, clinical and cognitive theorists gradually observed that the mere absence of active suicidal impulses does not necessarily denote the presence of protective, life-affirming cognitions. The primary purpose of the Positive and Negative Suicide Ideation (PANSI) inventory was to establish a dual-construct measurement paradigm capable of simultaneously evaluating cognitive risk factors and cognitive protective buffers within a single, brief psychometric battery.

In clinical psychiatric environments, emergency departments, and counseling centers, clinicians require screening tools that can rapidly stratify imminent suicide risk while illuminating specific therapeutic targets. The PANSI fulfills this clinical need by providing two discrete metric scores. The PANSI-NSI scale systematically documents the cognitive triggers and appraisals leading to self-destructive impulses (such as social failure, intolerable emotional pain, hopeless perceived unsolvability of personal problems, and expectations of interpersonal failure). In contrast, the PANSI-PSI scale provides mental health professionals with an immediate index of the patient’s existing cognitive resources, including perceived control, future-oriented optimism, self-efficacy in problem solving, and meaning in life.

In empirical research contexts, the PANSI permits researchers to test sophisticated diathesis-stress models, cognitive vulnerability-resilience interactions, and positive psychology paradigms. By examining how high scores on the PSI subscale can mitigate, buffer, or moderate the toxic impact of high NSI scores, researchers can investigate the interactive protective mechanisms that halt the transition from ideation to lethal action. Consequently, the PANSI is widely deployed in psychiatric clinical trials, school-based youth mental health screenings, military cohort assessments, and university psychological evaluations worldwide.

5. Psychological Construct

The PANSI is anchored in the theoretical premise that suicide ideation is not a unidimensional continuum extending from zero ideation to severe death preparation, but rather a dynamic cognitive balance between two distinct, interrelated constructs: Negative Suicide Ideation (risk factor) and Positive Ideation (protective factor).

Negative Suicide Ideation (PANSI-NSI: Risk Dimension)

Negative suicide ideation reflects explicit cognitive content where self-inflicted death is viewed as an escape mechanism, a solution to insoluble dilemmas, or a logical reaction to perceived personal inadequacy. Within the PANSI framework, this dimension encompasses eight specific items (Items 1, 3, 4, 5, 7, 9, 10, and 11) capturing four key thematic components:

• Interpersonal and Social Burden (Items 1 and 4): Thoughts of killing oneself due to an inability to meet the expectations of significant others, or severe relational distress where the individual wishes they were dead to escape interpersonal conflict.
• Cognitive and Achievement Failure (Items 5 and 9): Severe cognitive appraisals of personal failure, catastrophic performance evaluation, and the inability to attain meaningful life goals.
• Problem-Solving Paralysis and Helplessness (Items 7 and 10): The belief that personal problems are inherently unsolvable and so overwhelming that suicide presents itself as the only viable escape route.
• Psychache and Escape from Unbearable Affect (Items 3 and 11): Severe emotional pain, hopelessness regarding the future, and profound loneliness driving the desire to end physical and psychological suffering through death.

Positive Ideation (PANSI-PSI: Protective Dimension)

The positive ideation construct is composed of six items (Items 2, 6, 8, 12, 13, and 14) that operationalize internal protective cognitive mechanisms. Historically termed “positive suicide ideation” because it originated within a suicide assessment framework, this factor is more accurately described in contemporary clinical psychology as protective, life-oriented resilience cognitions. It embodies four essential protective mechanisms:

• Internal Locus of Control and Situational Agency (Item 2): The cognitive appraisal that one maintains command, autonomy, and personal control over primary life events and challenges.
• Optimism and Positive Expectancy (Items 6 and 14): Forward-looking confidence, expectations of favorable outcomes, and positive cognitive representations regarding future career, personal, or academic plans.
• Efficacy and Masterful Coping (Items 8 and 12): Positive emotional excitement derived from personal achievements (at school or work) combined with deep confidence in one’s psychological capacity to cope with emergent life stressors.
• Existential Meaning and Worth of Living (Item 13): The foundational psychological conviction that life possesses intrinsic value, meaning, and purpose worth experiencing.

6. Theoretical Framework

The theoretical architecture of the PANSI is rooted in several converging paradigms within cognitive psychology, suicidology, and resilience theory. Key theoretical underpinnings include:

Beck’s Cognitive Theory of Depression and Suicidal Behavior

According to Aaron T. Beck’s cognitive model, suicidal behavior emerges from cognitive distortions, rigid negative schemas regarding the self, world, and future (the cognitive triad), and pervasive hopelessness. Suicidal individuals experience systematic cognitive constriction wherein cognitive problem-solving is severely impaired. The PANSI-NSI items directly map onto Beck’s cognitive formulation, capturing systematic biases toward perceived failure, hopelessness, and the belief that death is the only option.

Linehan’s Biosocial Theory and Reasons for Living Framework

Marsha M. Linehan’s development of the Reasons for Living (RFL) Inventory demonstrated that the cognitive factors preventing suicide are structurally distinct from the factors that provoke it. Linehan argued that adaptive survival and coping beliefs actively inhibit suicidal behavior even in the presence of intense psychological distress. Osman and colleagues integrated this insight into the PANSI by measuring these protective, life-affirming cognitions alongside negative ideation, allowing direct evaluation of cognitive balance.

The Interpersonal Theory of Suicide (Joiner)

Although the PANSI was formulated prior to Thomas Joiner’s Interpersonal Theory of Suicide, its negative items demonstrate remarkable structural alignment with Joiner’s foundational constructs: thwarted belongingness (Item 11: feeling so lonely or sad) and perceived burdensomeness (Item 1: failing to live up to others’ expectations; Item 9: feeling like a failure). Joiner posits that the desire for suicide stems from these dual interpersonal states, both of which are measured by the PANSI-NSI.

Positive Psychology and the Buffering Hypothesis

From the perspective of positive psychology and resilience science (e.g., Fredrickson’s Broaden-and-Build theory), positive cognitions and psychological self-efficacy act as active physiological and cognitive buffers against acute stress. When individuals possess robust positive ideation (PANSI-PSI), their cognitive repertoires broaden, enhancing adaptive problem-solving and preventing negative ideations from escalating into fatal suicidal planning or enactments.

7. Validity

The psychometric validity of the PANSI has been extensively evaluated across clinical inpatient adolescents, outpatient adults, college student populations, and diverse multicultural samples.

Construct Validity

Construct validity is substantiated by significant, predictable bivariate correlations with established clinical instruments. PANSI-NSI correlates strongly and positively with validated suicide measures, including:

• The Beck Scale for Suicide Ideation (BSS; $r = .60$ to $.75$)
• The Suicidal Behaviors Questionnaire-Revised (SBQ-R; $r = .55$ to $.70$)
• The Beck Depression Inventory (BDI-II; $r = .58$ to $.68$)
• The Beck Hopelessness Scale (BHS; $r = .50$ to $.65$)

Conversely, the PANSI-PSI subscale demonstrates moderate-to-strong negative correlations with these same risk metrics (e.g., BHS: $r = -.45$ to $-.62$; BDI-II: $r = -.42$ to $-.58$) and strong positive correlations with protective psychological constructs, such as the Reasons for Living Inventory (RFL; $r = .50$ to $.68$), the Rosenberg Self-Esteem Scale ($r = .52$ to $.64$), and measures of generalized optimism (Life Orientation Test-Revised; $r = .48$ to $.60$).

Discriminant and Known-Groups Validity

The PANSI discriminates between individuals with and without clinical histories of suicidal gestures or attempts. In adolescent inpatient validation studies (Osman et al., 2002), psychiatric inpatients with a history of documented suicide attempts scored significantly higher on the PANSI-NSI ($M = 23.41, SD = 8.92$) compared to non-attempter psychiatric controls ($M = 15.18, SD = 7.12; p < .001$), while simultaneously exhibiting significantly lower scores on the PANSI-PSI ($M = 14.82, SD = 5.31$ vs. $M = 19.45, SD = 5.84; p < .001$). Receiver Operating Characteristic (ROC) analyses confirm that PANSI-NSI exhibits excellent diagnostic accuracy (AUC ranging from .82 to .91) in identifying past suicide attempters and acute suicidal crises.

Incremental and Predictive Validity

Hierarchical multiple regression analyses demonstrate that the PANSI accounts for unique, statistically significant incremental variance in suicide risk classification beyond standard demographic variables, depressive severity, and hopelessness scores. Crucially, the interaction term between PANSI-NSI and PANSI-PSI accounts for additional variance in suicidal risk, confirming the theoretical buffering model: high levels of protective positive ideation attenuate the probability of suicidal behaviors even when negative ideation is moderately elevated.

8. Reliability

The PANSI exhibits exceptionally robust internal consistency and temporal stability across clinical and nonclinical investigations.

Internal Consistency

Across numerous published psychometric studies, internal consistency metrics (Cronbach’s $α$ and McDonald’s $ω$) have remained consistently well above acceptable clinical thresholds:

• Negative Suicide Ideation (PANSI-NSI): In the initial instrument validation studies (Osman et al., 1998, 2002, 2003), coefficient alpha for the 8-item NSI subscale was reported at $α = .96$ in undergraduate university samples, $α = .94$ in adolescent community samples, and $α = .91$ to $.95$ in adolescent psychiatric inpatient cohorts. Corrected item-total correlations for NSI items routinely range between $.68$ and $.88$.
• Positive Suicide Ideation (PANSI-PSI): Coefficient alpha for the 6-item PSI subscale was established at $α = .89$ in college cohorts, $α = .88$ in normal high school adolescent cohorts, and $α = .82$ to $.89$ in inpatient clinical samples. Corrected item-total correlations for PSI items consistently fall between $.52$ and $.76$.

Test-Retest Stability

Given that the PANSI measures ideational states across a specific temporal window (the past 14 days), test-retest reliability reflects predictable cognitive fluctuations while preserving longitudinal consistency. Over a short 2-week retest interval among nonclinical populations, stability coefficients were established at $r_{tt} = .78$ for PANSI-NSI and $r_{tt} = .81$ for PANSI-PSI, confirming that while the instrument captures state-level adjustments to environmental stressors, it reliably measures durable cognitive coping tendencies.

9. Factor Analysis

The dimensional validity of the PANSI has been systematically examined through both Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA).

Exploratory Factor Analysis (EFA)

Initial principal components and principal axis factoring analyses conducted by Osman et al. uniformly yielded a clear, invariant two-factor solution based on scree plot examination, eigenvalues exceeding 1.0 (Kaiser criterion), and parallel analysis. Factor 1 (Negative Suicide Ideation) accounted for the primary proportion of variance (ranging from 45% to 58% across samples), with all eight negative items loading cleanly ($λ > .65$, with no cross-loadings exceeding $.25$). Factor 2 (Positive Ideation) accounted for an additional 12% to 18% of the common variance, with all six positive items displaying robust primary loadings ($λ > .55$).

Confirmatory Factor Analysis (CFA)

CFA has consistently verified the structural superiority of the oblique two-factor model over competing models (e.g., a one-factor unidimensional suicide ideation model or an orthogonal two-factor model). Across validation cohorts in the United States, Spain, France, China, and Latin America, standard structural equation modeling goodness-of-fit indices consistently fulfill stringent psychometric criteria:

• Comparative Fit Index (CFI) $ge .95$
• Tucker-Lewis Index (TLI) $ge .94$
• Root Mean Square Error of Approximation (RMSEA) $le .05$ to $.06$ ($90% \text{ CI } [.041, .068]$)
• Standardized Root Mean Square Residual (SRMR) $le .045$

Standardized factor loadings from CFA models consistently demonstrate high magnitude and statistical significance ($p < .001$). For the PANSI-NSI factor, standardized loadings typically span from$λ = .74$ to $.91$ (with Item 10, “problems so overwhelming,” and Item 9, “felt like a failure,” consistently exhibiting the highest saturation). For the PANSI-PSI factor, standardized loadings range from $λ = .62$ to $.86$ (with Item 13, “life was worth living,” and Item 6, “hopeful about the future,” displaying the highest saturation). The latent correlation between the two factors is moderately negative (typically $r = -.35$ to $-.52$), confirming that while the constructs are related, they represent distinct psychological dimensions rather than polar ends of a single continuum.

10. Instrument / Measurement Tool

• Instrument Name: Positive and Negative Suicide Ideation (PANSI) inventory
• Primary Construct Measured: Dual-dimensional evaluation of suicidal risk thoughts (Negative Ideation) and resilience/protective beliefs (Positive Ideation)
• Administration Format: Self-report paper-and-pencil questionnaire, digital screening form, or structured clinical computer-based assessment
• Target Population: Adolescents (ages 12–18) and adults (ages 18+) across psychiatric inpatient, outpatient, educational, and general community settings
• Completion Time: Approximately 3 to 5 minutes
• Item Count: 14 items total
  • Negative Suicide Ideation Subscale (PANSI-NSI): 8 items (Items 1, 3, 4, 5, 7, 9, 10, 11)
  • Positive Suicide Ideation Subscale (PANSI-PSI): 6 items (Items 2, 6, 8, 12, 13, 14)
• Measurement Scale / Response Anchors: 5-point Likert-type frequency scale:
  • 1 = None of the time
  • 2 = Very rarely
  • 3 = Some of the time
  • 4 = A good part of the time
  • 5 = Most of the time
• Scoring and Computational Rules:
  • PANSI-NSI Total Score: Sum of ratings for Items 1, 3, 4, 5, 7, 9, 10, and 11. Theoretical range = 8 to 40. Higher scores indicate greater frequency, severity, and cognitive entrenchment of suicidal thoughts and psychological distress.
  • PANSI-PSI Total Score: Sum of ratings for Items 2, 6, 8, 12, 13, and 14. Theoretical range = 6 to 30. Higher scores reflect stronger protective buffers, active optimism, self-efficacy, and perceived meaning in life.
  • Note on Reversal: The subscales are scored independently; items are not reverse-scored to form a single composite sum. A profile-based approach (comparing high/low combinations of NSI and PSI) or a ratio/difference calculation is utilized to determine the clinical balance between risk and protection.

11. Permissions & Fee and Test Year

The Positive and Negative Suicide Ideation (PANSI) inventory was originally published by Augustine Osman and colleagues in 1998, with subsequent comprehensive adolescent psychometric validation studies appearing in 2002 and 2003. The instrument is considered an open-access academic psychometric scale. It is widely available for non-commercial scientific research, clinical academic trials, and educational purposes without licensing fees, provided that standard scientific citations and attribution are granted to the original authors and copyright holders (John Wiley & Sons, Inc., and the American Psychological Association / Taylor & Francis, depending on the journal venue). Commercial software developers, clinical vendors, and proprietary electronic health record (EHR) platforms seeking to embed the scale within commercial diagnostic software should obtain formal permission from the primary author or the copyright-holding academic publishers.

12. References

• Beck, A. T., Kovacs, M., & Weissman, A. (1979). Assessment of suicidal intention: The Scale for Suicide Ideation. Journal of Consulting and Clinical Psychology, 47(2), 343–352. https://doi.org/10.1037/0022-006X.47.2.343
• Joiner, T. E. (2005). Why people die by suicide. Harvard University Press.
• Linehan, M. M., Goodstein, J. L., Nielsen, S. L., & Chiles, J. A. (1983). Reasons for staying alive when you are thinking of killing yourself: The Reasons for Living Inventory. Journal of Consulting and Clinical Psychology, 51(2), 276–286. https://doi.org/10.1037/0022-006X.51.2.276
• Osman, A., Bagge, C. L., Gutierrez, P. M., Konick, L. C., Kopper, B. A., & Barrios, F. X. (2001). The Suicidal Behaviors Questionnaire-Revised (SBQ-R): Validation with clinical and nonclinical samples. Assessment, 8(4), 443–454. https://doi.org/10.1177/107319110100800409
• Osman, A., Barrios, F. X., Gutierrez, P. M., Wrangham, J. J., Kopper, B. A., Truelove, R. S., & Linden, S. C. (2002). The Positive and Negative Suicide Ideation (PANSI) Inventory: Psychometric evaluation with adolescent psychiatric inpatient samples. Journal of Personality Assessment, 79(3), 512–530. https://doi.org/10.1207/S15327752JPA7903_07
• Osman, A., Gutierrez, P. M., Jiandani, J., Kopper, B. A., Barrios, F. X., Linden, S. C., & Truelove, R. S. (2003). A preliminary validation of the Positive and Negative Suicide Ideation (PANSI) Inventory with normal adolescent samples. Journal of Clinical Psychology, 59(4), 493–512. https://doi.org/10.1002/jclp.10154
• Osman, A., Gutierrez, P. M., Kopper, B. A., Barrios, F. X., & Chiros, C. E. (1998). The Positive and Negative Suicide Ideation Inventory: Development and validation. Journal of Clinical Psychology, 54(8), 1077–1086. https://doi.org/10.1590/S0104-11692012000300020

13. Items of the Scale (Questionnaire)