Addressing Critical Gaps in the Study of Suicide: Testing Key Predictions of the Interpersonal Theory of Suicide about Perceived Burdensomeness, Thwarted Belongingness, and Capability for Suicide, and Accounting for the Role of Zest for Life

Sarah Elizabeth George

Research output: ThesisDoctoral Thesis

Abstract

This thesis sought to address critical gaps in the literature on the interpersonal theory of suicide. First, three core assumptions regarding the theory's two putative causes of suicidal desire, perceived burdensomeness and thwarted belongingness, were tested experimentally. Key predictions about the theory's third pillar, the acquired capability for suicide, in transforming suicidal thoughts into lethal behavior were next examined longitudinally. Finally, the protective influence of zest for life was tested against the adverse effects of the theory's three risk factors. Findings support key predictions of the theory though some modifications to the model are indicated.
LanguageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Award date20 Sep 2017
DOIs
StateUnpublished - 2017

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Suicide

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abstract = "This thesis sought to address critical gaps in the literature on the interpersonal theory of suicide. First, three core assumptions regarding the theory's two putative causes of suicidal desire, perceived burdensomeness and thwarted belongingness, were tested experimentally. Key predictions about the theory's third pillar, the acquired capability for suicide, in transforming suicidal thoughts into lethal behavior were next examined longitudinally. Finally, the protective influence of zest for life was tested against the adverse effects of the theory's three risk factors. Findings support key predictions of the theory though some modifications to the model are indicated.",
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AB - This thesis sought to address critical gaps in the literature on the interpersonal theory of suicide. First, three core assumptions regarding the theory's two putative causes of suicidal desire, perceived burdensomeness and thwarted belongingness, were tested experimentally. Key predictions about the theory's third pillar, the acquired capability for suicide, in transforming suicidal thoughts into lethal behavior were next examined longitudinally. Finally, the protective influence of zest for life was tested against the adverse effects of the theory's three risk factors. Findings support key predictions of the theory though some modifications to the model are indicated.

KW - Suicide

KW - Interpersonal theory of suicide

KW - burdensomeness

KW - thwarted belongingness

KW - capability for suicide

KW - zest for life

KW - Resilience

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