Albuquerque Maicon R, Lopes Mariana C, de Paula Jonas J, Faria Larissa O, Pereira Eveline T, da Costa Varley T
Department of Sports, Universidade Federal de Minas Gerais Belo Horizonte, Brazil.
Department of Physical Education, Universidade Federal de Viçosa Viçosa, Brazil.
Front Psychol. 2017 Feb 28;8:261. doi: 10.3389/fpsyg.2017.00261. eCollection 2017.
In order to understand the reasons that lead individuals to practice physical activity, researchers developed the Motives for Physical Activity Measure-Revised (MPAM-R) scale. In 2010, a translation of MPAM-R to Portuguese and its validation was performed. However, psychometric measures were not acceptable. In addition, factor scores in some sports psychology scales are calculated by the mean of scores by items of the factor. Nevertheless, it seems appropriate that items with higher factor loadings, extracted by Factor Analysis, have greater weight in the factor score, as items with lower factor loadings have less weight in the factor score. The aims of the present study are to translate, validate the MPAM-R for Portuguese versions, and investigate agreement between two methods used to calculate factor scores. Three hundred volunteers who were involved in physical activity programs for at least 6 months were collected. Confirmatory Factor Analysis of the 30 items indicated that the version did not fit the model. After excluding four items, the final model with 26 items showed acceptable model fit measures by Exploratory Factor Analysis, as well as it conceptually supports the five factors as the original proposal. When two methods are compared to calculate factors scores, our results showed that only "Enjoyment" and "Appearance" factors showed agreement between methods to calculate factor scores. So, the Portuguese version of the MPAM-R can be used in a Brazilian context, and a new proposal for the calculation of the factor score seems to be promising.
为了了解促使个体进行体育活动的原因，研究人员开发了修订版体育活动动机量表（MPAM-R）。2010年，该量表被翻译成葡萄牙语并进行了效度验证。然而，心理测量指标并不理想。此外，一些运动心理学量表中的因子得分是通过该因子各项目得分的平均值来计算的。然而，通过因子分析提取的具有较高因子载荷的项目在因子得分中权重更大似乎是合理的，因为具有较低因子载荷的项目在因子得分中的权重较小。本研究的目的是翻译并验证葡萄牙语版本的MPAM-R，并研究用于计算因子得分的两种方法之间的一致性。收集了300名参与体育活动项目至少6个月的志愿者。对30个项目进行验证性因子分析表明该版本不适合模型。在排除4个项目后，由26个项目组成的最终模型通过探索性因子分析显示出可接受的模型拟合指标，并且在概念上支持了最初提议的五个因子。当比较两种计算因子得分的方法时，我们的结果表明只有“享受”和“外表”因子在计算因子得分的方法之间显示出一致性。因此，MPAM-R的葡萄牙语版本可在巴西背景下使用，并且一种新的因子得分计算方法似乎很有前景。
