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Abbreviated Suicidal Narrative Inventory: factor structure, internal consistency, and validity in a Brazilian sample
Jefté Peper-Nascimento1, Megan L Rogers2, Alexandre Paim Diaz3
1Laboratório de Psiquiatria Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil.
Revista Brasileira De Psiquiatria (Sao Paulo, Brazil : 1999)
|March 11, 2024
Summary
The Brazilian version of the Abbreviated Suicidal Narrative Inventory (SNI-38) is a reliable and valid tool for assessing suicidal narratives. This study confirmed its factor structure, reliability, and validity in a Brazilian community sample.
Area of Science:
- Psychological assessment
- Mental health research
- Clinical psychology
Background:
- Suicidal narratives are complex and require validated instruments for accurate measurement.
- The Abbreviated Suicidal Narrative Inventory (SNI-38) is a tool used to assess these narratives.
- Adapting and validating instruments for specific cultural contexts, like Brazil, is crucial for effective mental health research.
Purpose of the Study:
- To evaluate the psychometric properties of the Brazilian version of the Abbreviated Suicidal Narrative Inventory (SNI-38).
- To test the factor structure, reliability, and validity of the SNI-38 in a Brazilian population.
Main Methods:
- An anonymous online questionnaire including the SNI-38 and other self-report measures was administered to 2,660 Brazilian participants.
- Confirmatory factor analysis (CFA) was used to assess the factor structure.
- Internal consistency and convergent validity were examined against measures of stressful life events, suicide crisis syndrome, suicidal ideation, and suicide attempts.
Main Results:
- The eight-factor model of the SNI-38 demonstrated good model fit, with all items loading significantly onto their respective factors.
- Reliability was good to high for most subscales.
- The SNI-38 subscales showed significant positive correlations with indicators of suicide risk, including suicidal ideation and attempts.
Conclusions:
- The Brazilian version of the SNI-38 is a valid and appropriate instrument for measuring suicidal narratives in Brazilian individuals.
- These findings support the use of the SNI-38 in clinical and research settings within Brazil.
- Further research may explore its application in diverse Brazilian populations.
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