Evaluation of the Factor Structure of the Motives to Stop or Reduce Alcohol Consumption Scale (MCR-A) in Brazil
DOI:
https://doi.org/10.22235/cp.v19i2.4375Keywords:
motives, alcohol, validity, reliability, MCR-AAbstract
This study aimed to evaluate the psychometric properties (validity and reliability) of the Motives for Ceasing or Reducing Alcohol Consumption Scale (MCR-A) in the Brazilian context. A total of 334 university students participated, with an average age of 22.9 years (SD = 4.20), the majority were female (68 %), single (86 %), and Catholic (47 %). They responded to the sociodemographic questionnaire and the MCR-A Scale, composed of three factors for each construct: F1. Rejection of alcohol; F2. Health and life changes; F3. Severe consequences. Descriptive, confirmatory factor, and internal consistency analyses were conducted. The results indicated adequate evidence for the tested model, with the following fit indices for the motives to reduce [TLI = .99; CFI = .99; RMSEA = .076 (90 % CI = .068 - .084)] and cease [TLI = .99; CFI = .99; RMSEA = .074 (90 % CI = .066 - .082)] alcohol consumption. The alpha and omega values for the scale of motives to reduce (α = .95; ω = .95) and cease alcohol consumption (α = .93; ω = .93) were also adequate. It is concluded that the instrument demonstrated adequate psychometric properties and can assist in scientific studies and intervention actions targeting Brazilian university students.
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