J Korean Neuropsychiatr Assoc.  2023 Aug;62(3):111-117. 10.4306/jknpa.2023.62.3.111.

A Validation of the Korean Version of Ultra-Short Suicidal Ideation Scale

• Yoon KS
• Kim E
• Park YC
• Kim D
• Choi J
• Park SC
• Kim IB
• Lee YS

• KMID: 2545823
• DOI: http://doi.org/10.4306/jknpa.2023.62.3.111

Abstract

Objectives
An accurate and easy-to-identify form is needed for the early evaluation of suicidal ideation in high-risk patients. Therefore, this study examined the validity and reliability of a Korean version of the Ultra-Short Suicidal Ideation Scale (K-USSIS).
Methods
A total of 161 psychiatric university-affiliated general hospital patients completed the K-USSIS. The data were analyzed using correlation, internal consistency, and confirmatory factor analyses.
Results
First, the scale had good internal consistency with a Cronbach’s α of 0.94. Second, the confirmatory factor analysis demonstrated that the single-factor model had a reasonable fit (comparative fit index=0.99, Tucker–Lewis index=0.98, standardized root mean squared residual=0.01, and root mean square error of approximation=0.10). Finally, the convergent validity analysis revealed a significant positive correlation with depression, anxiety, and hopelessness.
Conclusion
The findings suggest that the K-USSIS has good psychometric properties and can serve as a valuable tool for screening for suicidal ideation to ensure early intervention in Korean psychiatric patients.

Keyword

Suicidal ideation; Ultra-Short Suicidal Ideation Scale; Validity; Reliability