Evaluación de la estructura factorial de la escala Motivos para Cesar o Reducir el Consumo de Alcohol (MCR-A) en Brasil
DOI:
https://doi.org/10.22235/cp.v19i2.4375Palabras clave:
motivos, alcohol, validez, fiabilidad, MCR-AResumen
El objetivo de este trabajo fue evaluar las propiedades psicométricas (validez y fiabilidad) de la escala Motivos para Cesar o Reducir el Consumo de Alcohol (MCR-A) en el contexto brasileño. Participaron 334 estudiantes universitarios, con una edad media de 22.9 años (DE = 4.20), la mayoría del sexo femenino (68 %), solteros (86 %) y católicos (47 %). Respondieron al cuestionario sociodemográfico y a la escala MCR-A, compuesta por tres factores para cada constructo: F1. Rechazo del alcohol; F2. Salud y cambios vitales; F3. Consecuencias severas. Se realizaron análisis descriptivos, factorial confirmatorio y de consistencia interna. Los resultados indicaron evidencias adecuadas para el modelo probado, con los siguientes indicadores de ajuste para los motivos para reducir [TLI = .99; CFI = .99; RMSEA = .076 (IC90 % = .068 - .084)] y cesar [TLI = .99; CFI = .99; RMSEA = .074 (IC90 % = .066 - .082)] el consumo de alcohol. Los valores del alfa y omega para la escala de motivos para reducir (α = .95; ω = .95) y cesar el consumo de alcohol (α = .93; ω = .93) también fueron adecuados. Se concluye que el instrumento presentó propiedades psicométricas adecuadas, por lo que puede auxiliar en estudios científicos e intervenciones dirigidas a universitarios brasileños.
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