Abstract

PEREIRA DE ARAUJO SOUSA, Kairon; HAUCK FILHO, Nelson  and  PASIAN, Sonia Regina. Evaluation of the Factor Structure of the Motives to Stop or Reduce Alcohol Consumption Scale (MCR-A) in Brazil. Cienc. Psicol. [online]. 2025, vol.19, n.2, e4375.  Epub Dec 01, 2025. ISSN 1688-4094.  https://doi.org/10.22235/cp.v19i2.4375.

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.

Keywords : motives; alcohol; validity; reliability; MCR-A.

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