Cross-Cultural Adaptation and Validation of the MPAM-R to Brazilian Portuguese and Proposal of a New Method to Calculate Factor Scores

Abstract

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.

Motivational factors for sport: the case of soccer athletes aged between 12 and 17 years

“…The analysis of the data was performed with the use of descriptive statistics: mean and standard deviation. it should be noted that weighted mean of the reasons for practising was applied, in accordance with the dimensions proposed in the instrument [20]. Thus, the dimensions were calculated by means of the following description: Analysis of variance (ANOVA) with repeated measures was used to compare the dimensions, and the t-test for independent samples served to compare the groups.…”

“…The instrument for data collection was the Motives for Physical Activity Measure -revised (MPAM-r) scale, translated into Portuguese and validated to the Brazilian context [20]. The scale presents 7 items that measure the fun dimension (e.g.…”

Development and validation of a risk assessment scale for hepatic encephalopathy in cirrhotic patients

“…If an item was not achieved, it was considered be removed. After that, factor analysis was used to determine the factor weights for the sake of objectivity [19].…”

Efeitos de um programa de telerreabilitação sobre a qualidade de vida de pessoas com Doença de Parkinson, durante o isolamento social na pandemia da COVID-19

“…(BEN-PAZI et al, 2018;DORSEY et al, 2010). Importante destacar que as médias obtidas em cada um dos fatores da MPAM-R, pelos participantes do presente estudo, foram similares àquelas obtidas pelo estudo de Albuquerque et al (2017). Os autores desse estudo tiveram como objetivos traduzir e validar a MPAM-R para a língua portuguesa brasileira e apresentaram dados normativos de 300 participantes saudáveis, praticantes de atividades físicas regulares, há pelo menos 6 meses (divertimento = 5.13; competência = 3.92; aparência = 5.29; fitness = 6.07; e, social = 3.24).…”