Self-Injurious Thoughts and Behaviors Interview-Korean Version: Psychometric Properties.

Area of Science:

• Psychiatry
• Clinical Psychology
• Mental Health Assessment

Background:

• No comprehensive structured interview tool for self-injurious thoughts and behaviors (SITB) exists in Korea.
• The Self-injurious Thoughts and Behaviors Interview (SITBI) is a validated tool in English-speaking countries for assessing suicidal ideation, plans, gestures, attempts, and non-suicidal self-injuries (NSSI).

Purpose of the Study:

• To evaluate the psychometric validity of the Korean version of the SITBI (SITBI-K).
• To confirm the clinical utility of the SITBI-K for diagnosing NSSI and suicidal behavior disorder (SBD).

Main Methods:

• Examined the validity of the SITBI-K as a diagnostic tool for NSSI and SBD (DSM-5 criteria).
• Analyzed data from 108 university students with reported suicidal thoughts and behaviors.

Main Results:

• The SITBI-K exhibited excellent interrater reliability and credible two-month test-retest reliability.
• Confirmed construct validity through correlations with self-report measures.
• Achieved appropriate convergent and discriminant validities for suicidal ideation, plans, gestures, attempts, and NSSI.

Conclusions:

• The SITBI-K possesses excellent psychometric validity, comparable to the original English version.
• The SITBI-K is clinically useful for diagnosing both NSSI and SBD in the Korean population.