Reyes-Molina Daniel, Zapata-Lamana Rafael, Bustos Claudio, Mella-Norambuena Javier, Zañartu Isidora, Chávez-Castillo Yasna, Gajardo-Aguayo Jorge, Castillo-Carreño Anabel, Cabezas María-Francisca, Castillo Riquelme Víctor, Reyes-Amigo Tomás, Cigarroa Igor, Nazar Gabriela
Doctorado en Psicología, Facultad de Ciencias Sociales, Universidad de Concepción, Concepción 4030000, Chile.
Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás, Los Ángeles 4430000, Chile.
Behav Sci (Basel). 2025 Jan 23;15(2):114. doi: 10.3390/bs15020114.
This study aimed to adapt and analyze the psychometric properties of the Exercise Behavior Regulation Questionnaire (BREQ-3) for assessing motivation towards incidental physical activity. An instrumental study in a sample of 346 university students (21.1 ± 2.6 years, and 61.3% women) from various universities in Chile was undertaken. An adaptation of the BREQ-3 was applied, and a confirmatory factor analysis was performed using a robust weighted least squares estimator to assess the construct validity of the scale. Also, the convergent validity was evaluated using the average variance extracted, the discriminant validity using composite reliability, and the internal consistency using Cronbach's alpha (α) and McDonald's omega (ω) coefficients. The six-factor structure of intrinsic motivation (α = 0.96, ω = 0.96), integrated regulation (α = 0.95, ω = 0.95), identified regulation (α = 0.89, ω = 0.90), introjected regulation (α = 0.75, ω = 0.77), external regulation (α = 0.80, ω = 0.83), and amotivation (α = 0.75, ω = 0.79), with acceptable fit indices after eliminating items 8 and 11, was confirmed-χ/df: 2.196, CFI: 0.99, TLI: 0.99, RMSEA: 0.059 (90% CI; 0.051-0.067). Adaptation of the BREQ-3 appears to be a reliable measure for assessing motivation in the context of incidental physical activity. Its use will contribute to understanding the explanatory mechanisms underlying this behavior.
本研究旨在对运动行为调节问卷（BREQ - 3）进行改编并分析其心理测量特性，以评估对偶然身体活动的动机。在来自智利各大学的346名大学生样本（年龄21.1±2.6岁，女性占61.3%）中开展了一项工具性研究。应用了BREQ - 3的改编版，并使用稳健加权最小二乘估计器进行验证性因素分析，以评估该量表的结构效度。此外，使用提取的平均方差评估收敛效度，使用组合信度评估区分效度，使用克朗巴哈α系数（α）和麦克唐纳ω系数（ω）评估内部一致性。在剔除第8项和第11项后，确认了内在动机（α = 0.96，ω = 0.96）、整合调节（α = 0.95，ω = 0.95）、认同调节（α = 0.89，ω = 0.90）、内摄调节（α = 0.75，ω = 0.77）、外部调节（α = 0.80，ω = 0.83）和无动机（α = 0.75，ω = 0.79）的六因素结构，拟合指数可接受——χ/df：2.196，CFI：0.99，TLI：0.99，RMSEA：0.059（90%置信区间；0.051 - 0.067）。BREQ - 3的改编版似乎是评估偶然身体活动背景下动机的可靠测量工具。其使用将有助于理解这种行为背后的解释机制。
