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Suicide Crisis Inventory-2: factor structure, internal consistency, and validity in a Brazilian sample
Jefté Peper-Nascimento1, Megan L Rogers2, Jenelle A Richards3
1Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Psiquiatria Translacional, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil.
Revista Brasileira De Psiquiatria (Sao Paulo, Brazil : 1999)
|February 20, 2024
Summary
The Brazilian version of the Suicide Crisis Inventory-2 (SCI-2) is a reliable tool for assessing suicidal crisis syndrome in adults. This validated instrument demonstrates good psychometric properties for evaluating suicide risk factors.
Area of Science:
- Psychology
- Psychiatry
- Mental Health Research
Background:
- Suicidal crisis is a significant public health concern.
- Accurate assessment tools are crucial for timely intervention.
- The Suicide Crisis Inventory-2 (SCI-2) is an established measure for assessing suicidal crisis syndrome.
Purpose of the Study:
- To evaluate the psychometric properties of the Brazilian version of the SCI-2.
- To assess the factor structure, reliability, and validity of the SCI-2 in a Brazilian adult population.
Main Methods:
- Cross-cultural adaptation of the SCI-2 into Portuguese.
- Administration to 2,265 Brazilian adults.
- Confirmatory factor analysis (CFA) to evaluate model fit, internal consistency, convergent validity, and criterion validity.
Main Results:
- A five-factor model of the SCI-2 demonstrated good fit (CFI=1.00, TLI=1.00, RMSEA=0.06, SRMR=0.04).
- The SCI-2 total and subscale scores exhibited strong internal consistency.
- Good convergent and criterion validity were found concerning stressful life events, suicidal ideation, and suicide attempts.
Conclusions:
- The Brazilian version of the SCI-2 is a valid and reliable instrument.
- It is suitable for assessing symptoms of suicidal crisis syndrome in Brazilian adults.
- This tool can aid in the clinical evaluation and management of individuals experiencing suicidal crises.
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