The ABC's of suicide risk assessment: applying a tripartite approach to individual evaluations

Harris, Keith M., Syu, Jia-Jia, Lello, Owen D., Chew, Y. L. Eileen, Willcox, Christopher H. and Ho, Roger H.M. (2015) The ABC's of suicide risk assessment: applying a tripartite approach to individual evaluations. PL o S One, 10 6: 1-16. doi:10.1371/journal.pone.0127442

Author Harris, Keith M.
Syu, Jia-Jia
Lello, Owen D.
Chew, Y. L. Eileen
Willcox, Christopher H.
Ho, Roger H.M.
Title The ABC's of suicide risk assessment: applying a tripartite approach to individual evaluations
Journal name PL o S One   Check publisher's open access policy
ISSN 1932-6203
Publication date 2015-06-01
Year available 2015
Sub-type Article (original research)
DOI 10.1371/journal.pone.0127442
Open Access Status DOI
Volume 10
Issue 6
Start page 1
End page 16
Total pages 16
Place of publication San Francisco, CA, United States
Publisher Public Library of Science
Language eng
Abstract There is considerable need for accurate suicide risk assessment for clinical, screening, and research purposes. This study applied the tripartite affect-behavior-cognition theory, the suicidal barometer model, classical test theory, and item response theory (IRT), to develop a brief self-report measure of suicide risk that is theoretically-grounded, reliable and valid. An initial survey (n = 359) employed an iterative process to an item pool, resulting in the six-item Suicidal Affect-Behavior-Cognition Scale (SABCS). Three additional studies tested the SABCS and a highly endorsed comparison measure. Studies included two online surveys (Ns = 1007, and 713), and one prospective clinical survey (n = 72; Time 2, n = 54). Factor analyses demonstrated SABCS construct validity through unidimensionality. Internal reliability was high (α = .86-.93, split-half = .90-.94)). The scale was predictive of future suicidal behaviors and suicidality (r = .68, .73, respectively), showed convergent validity, and the SABCS-4 demonstrated clinically relevant sensitivity to change. IRT analyses revealed the SABCS captured more information than the comparison measure, and better defined participants at low, moderate, and high risk. The SABCS is the first suicide risk measure to demonstrate no differential item functioning by sex, age, or ethnicity. In all comparisons, the SABCS showed incremental improvements over a highly endorsed scale through stronger predictive ability, reliability, and other properties. The SABCS is in the public domain, with this publication, and is suitable for clinical evaluations, public screening, and research.
Keyword Suicide risk assessment
Psychosocial assessment
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Public Health Publications
School of Psychology Publications
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Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
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