Tracy K. Witte

The Interpersonal Theory of Suicide.

Suicidal behavior is a major problem worldwide and, at the same time, has received relatively little empirical attention. This relative lack of empirical attention may be due in part to a relative absence of theory development regarding suicidal behavior. The current article presents the interpersonal theory of suicidal behavior. We propose that the most dangerous form of suicidal desire is caused by the simultaneous presence of two interpersonal constructs-thwarted belongingness and perceived burdensomeness (and hopelessness about these states)-and further that the capability to engage in suicidal behavior is separate from the desire to engage in suicidal behavior. According to the theory, the capability for suicidal behavior emerges, via habituation and opponent processes, in response to repeated exposure to physically painful and/or fear-inducing experiences. In the current article, the theorys hypotheses are more precisely delineated than in previous presentations (Joiner, 2005), with the aim of inviting scientific inquiry and potential falsification of the theorys hypotheses.

Suicidal Desire and the Capability for Suicide: Tests of the Interpersonal-Psychological Theory of Suicidal Behavior among Adults.

The interpersonal-psychological theory of suicidal behavior (T. E. Joiner, 2005) proposes that an individual will not die by suicide unless he or she has both the desire to die by suicide and the ability to do so. Three studies test the theorys hypotheses. In Study 1, the interaction of thwarted belongingness and perceived burdensomeness predicted current suicidal ideation. In Study 2, greater levels of acquired capability were found among individuals with greater numbers of past attempts. Results also indicated that painful and provocative experiences significantly predicted acquired capability scores. In Study 3, the interaction of acquired capability and perceived burdensomeness predicted clinician-rated risk for suicidal behavior. Implications for the etiology, assessment, and treatment of suicidal behavior are discussed.

Main Predictions of the Interpersonal-Psychological Theory of Suicidal Behavior: Empirical Tests in Two Samples of Young Adults

The interpersonal-psychological theory of suicidal behavior (T. E. Joiner, 2005) makes 2 overarching predictions: (a) that perceptions of burdening others and of social alienation combine to instill the desire for death and (b) that individuals will not act on the desire for death unless they have developed the capability to do so. This capability develops through exposure and thus habituation to painful and/or fearsome experiences and is posited by the theory to be necessary for overcoming powerful self-preservation pressures. Two studies tested these predictions. In Study 1, the interaction of (low) family social support (cf. social alienation or low belonging) and feeling that one does not matter (cf. perceived burdensomeness) predicted current suicidal ideation, beyond depression indices. In Study 2, the 3-way interaction among a measure of low belonging, a measure of perceived burdensomeness, and lifetime number of suicide attempts (viewed as a strong predictor of the level of acquired capability for suicide) predicted current suicide attempt (vs. ideation) among a clinical sample of suicidal young adults, again beyond depression indices and other key covariates. Implications for the understanding, treatment, and prevention of suicidal behavior are discussed.

Thwarted belongingness and perceived burdensomeness: construct validity and psychometric properties of the Interpersonal Needs Questionnaire

The present study examined the psychometric properties and construct validity of scores derived from the Interpersonal Needs Questionnaire (INQ) using latent variable modeling with 5 independent samples varying in age and level of psychopathology. The INQ was derived from the interpersonal theory of suicide and was developed to measure thwarted belongingness and perceived burdensomeness-both proximal causes of desire for suicide. Results support that thwarted belongingness and perceived burdensomeness are distinct but related constructs and that they can be reliably measured. Further, multiple-group analyses were consistent with invariance for young versus older adults and nonclinical versus clinical populations, thereby supporting the relevance of these constructs to diverse populations. Finally, both constructs demonstrated convergent associations with related interpersonal constructs-including loneliness and social support for belongingness and social worth and death ideation for burdensomeness--as well as prospective associations with suicidal ideation.

The Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5): Development and Initial Psychometric Evaluation

The Posttraumatic Stress Disorder Checklist (PCL) is a widely used DSM-correspondent self-report measure of PTSD symptoms. The PCL was recently revised to reflect DSM-5 changes to the PTSD criteria. In this article, the authors describe the development and initial psychometric evaluation of the PCL for DSM-5 (PCL-5). Psychometric properties of the PCL-5 were examined in 2 studies involving trauma-exposed college students. In Study 1 (N = 278), PCL-5 scores exhibited strong internal consistency (α = .94), test-retest reliability (r = .82), and convergent (rs = .74 to .85) and discriminant (rs = .31 to .60) validity. In addition, confirmatory factor analyses indicated adequate fit with the DSM-5 4-factor model, χ2 (164) = 455.83, p < .001, standardized root mean square residual (SRMR) = .07, root mean squared error of approximation (RMSEA) = .08, comparative fit index (CFI) = .86, and Tucker-Lewis index (TLI) = .84, and superior fit with recently proposed 6-factor, χ2 (164) = 318.37, p < .001, SRMR = .05, RMSEA = .06, CFI = .92, and TLI = .90, and 7-factor, χ2 (164) = 291.32, p < .001, SRMR = .05, RMSEA = .06, CFI = .93, and TLI = .91, models. In Study 2 (N = 558), PCL-5 scores demonstrated similarly strong reliability and validity. Overall, results indicate that the PCL-5 is a psychometrically sound measure of PTSD symptoms. Implications for use of the PCL-5 in a variety of assessment contexts are discussed.

Four Studies on How Past and Current Suicidality Relate Even When "Everything But the Kitchen Sink" Is Covaried.

T. E. Joiners (2004, in press) theory of suicidal behavior suggests that past suicidal behavior plays an important role in future suicidality. However, the mechanism by which this risk is transferred and the causal implications have not been well studied. The current study provides evaluation of the nature and limits of this relationship across 4 populations, with varying degrees of suicidal behavior. Across settings, age groups, and impairment levels, the association between past suicidal behavior and current suicidal symptoms held, even when controlling for strong covariates like hopelessness and symptoms of various Axis I and II syndromes. Results provide additional support for the importance of past suicidality as a substantive risk factor for later suicidal behavior.

The interpersonal theory of suicide : guidance for working with suicidal clients

Why do people die by suicide? Dr. Thomas Joiner and his colleagues attempt to answer this age-old question by exploring two obvious yet insightful assumptions: people die by suicide because they can - that is, they become desensitized to pain and habituated toward violence; people die by suicide because they want to - they typically have no sense of belonging to a valued group or relationship, and they feel that they have become a burden to loved ones.This book offers a new theoretical framework for diagnosis and risk-assessment of a patients entry into the dark and obscure mental world of suicidality, and for the creation of preventive and public-health campaigns aimed at the disorder. More important, though, the book provides new, effective clinical guidelines for crisis intervention and for therapeutic alliances in psychotherapy and suicide prevention.

Fearlessness about death: the psychometric properties and construct validity of the revision to the acquired capability for suicide scale.

The Interpersonal Theory of Suicide proposes that suicidal behavior is so frightening that in order for an individual to engage in suicidal behavior, desire for suicide must be accompanied by the capability to do so. The capability for suicide is characterized by both a sense of fearlessness about death and elevated physiological pain tolerance. The primary aim of the current project was to reevaluate and revise the Acquired Capability for Suicide Scale (ACSS; Van Orden, Witte, Gordon, Bender, & Joiner, 2008) and offer a revision to the scale. Expert review of the scale items resulted in retaining 7 items assessing fearlessness about death. The recommendation is made to refer to the revised scale as the ACSS-Fearlessness About Death (ACSS-FAD) to reflect its content more specifically. A model with the 7 retained items provided good fit to the data across 3 independent samples of young adults. Multiple-group analyses examining measurement invariance across men and women found that the latent structure of the scale is comparable across gender. Data are also presented demonstrating convergent and discriminant validity for the scale in young adults and an inpatient psychiatric sample. Findings support the viability of the ACSS-FAD, indicating the scale has a replicable factor structure that generalizes across males and females and is substantively related to the construct of fearlessness about death. Taken together, the present work extends knowledge of the psychometrics of the ACSS-FAD in particular and the nature of fearlessness about death in general.

Suicidal ideation in college students varies across semesters: The mediating role of belongingness

The interpersonal-psychological theory of suicidal behavior (Joiner, 2005) proposes that the need to belong is fundamental; when met it can prevent suicide and when thwarted it can substantially increase the risk for suicide. We investigate one source of group-wide variation in belongingness among college students--changes in the social composition of college campuses across academic semesters--as an explanation for variation in suicidal ideation across the academic year. Our results indicate that in a sample of college students at a large southern state university (n = 309), suicidal ideation varied across academic semesters, with highest levels in summer compared to both spring and fall. Differences in suicidal ideation between summer and spring were, in large part, accounted for by belongingness. Theoretical, as well as practical, implications are discussed regarding mechanisms for seasonal variation in suicidal ideation.

The Reinforcing Properties of Repeated Deliberate Self-Harm

The current study tested hypotheses derived from Joiners (2005) interpersonal theory of suicide, which proposes that deliberate self-harm (DSH) becomes increasingly more reinforcing with repetition. One hundred six participants with a history of DSH completed questionnaires about their emotions and experience of physical pain during their most recent DSH episode. Consistent with prediction, people with more numerous past DSH episodes felt more soothed, more relieved, and calmer following their most recent episode of DSH. Contrary to prediction, greater numbers of past DSH episodes were associated with more intense physical pain during the most recent episode. The findings suggest that the emotion regulation functions of DSH may become more reinforcing with repetition.