Construct development: The Suicide Trigger Scale (STS-2), a measure of a hypothesized suicide trigger state

Zimri Yaseen, Curren Katz, Matthew S. Johnson, Daniel Eisenberg, Lisa J. Cohen, Igor I. Galynker

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

Background: This study aims to develop the construct of a 'suicide trigger state' by exploring data gathered with a novel psychometric self-report instrument, the STS-2.Methods: The STS-2, was administered to 141 adult psychiatric patients with suicidal ideation. Multiple statistical methods were used to explore construct validity and structure.Results: Cronbach's alpha (0.949) demonstrated excellent internal consistency. Factor analyses yielded two-component solutions with good agreement. The first component described near-psychotic somatization and ruminative flooding, while the second described frantic hopelessness. ROC analysis determined an optimal cut score for a history of suicide attempt, with significance of p < 0.03. Logistic regression analysis found items sensitive to history of suicide attempt described ruminative flooding, doom, hopelessness, entrapment and dread.Conclusions: The STS-2 appears to measure a distinct and novel clinical entity, which we speculatively term the 'suicide trigger state.' High scores on the STS-2 associate with reported history of past suicide attempt.

Original languageEnglish
Article number110
JournalBMC Psychiatry
Volume10
DOIs
StatePublished - 14 Dec 2010
Externally publishedYes

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