Citation

Curtis ME, Ryan-Gonzalez C, Blessing A, Lara-Ruiz J, Mohammed Z, Osman A. Arch. Suicide Res. 2019; ePub(ePub): 1-17.

Copyright

(Copyright © 2019, International Academy of Suicide Research, Publisher Informa - Taylor and Francis Group)

DOI

10.1080/13811118.2019.1645067

PMID

31349762

Abstract

OBJECTIVE: We provide a brief description of the development of the Trauma and Suicide Potential Index-5 (TSPI-5) and report on the psychometric properties of scores from the new instrument. The TSPI-5 is designed to assess an individual's desire to attempt suicide due to experiencing a trauma.

METHOD: We examined the structure of the instrument in two independent undergraduate samples. Study 1 (N = 415) examined the structure of the TSPI-5 using exploratory structural equation modeling (ESEM). Study 2 (N = 538) re-examined the instrument structure using the same modeling strategy and also examined other validity estimates.

RESULTS: Study 1 demonstrated an adequate fit to the sample data (χ2 [1, N = 415] = 215.99, p <.001, CFI = .969, TLI = .939, RMSEA = .319 [90% CI = .283,.356], p <.001) and suggested evidence for unidimensionality. Study 2 confirmed the unidimensionality of the TSPI-5 as shown by acceptable fit estimates to the sample data, χ² (5, N = 538) = 80.45, p <.001, CFI =.996, TLI = .99, RMSEA = .17 (90% CI = .140,.200), p <.001. Scale reliability estimates for the TSPI-5 were good in Study 1 (omega = .94) and Study 2 (omega = .96).

CONCLUSION: The TSPI-5 is a brief unidimensional instrument and its scores demonstrated good reliability and validity for assessing suicide-related behaviors due to experiencing a trauma in undergraduate samples.

Language: en

Keywords

assessment; suicidal behavior; suicide; trauma; traumatic experiences