Psychometric properties of Portuguese version of trait meta-mood scale (TMMS24)

It was intended to evaluate de psychometric properties of Trait Meta-Mood Scale (TMMS24), Portuguese version of Queiroz et al. (2005) in 170 athletes, male gender sample. Statistical analysis was performed through the software Statistical Package for Social Sciences (SPSS) version 20 for Windows. We proceeded to the analysis of the reliability of the 24 items of the instrument in order to see if the items were to measure the construct and obtain a high internal consistency (α = 0.890), almost unchanged with the elimination of any item. The inter-item correlation was not as strong, confirming the analysis of alpha. However, the items in each category tend to have a stronger relation/ correlation with each other, between categories. We conducted factor analysis, and variability between the variables, so as to reduce them to a particular number of dimensions. Initially we observed a six-dimensional division, but we forced the analysis to only three resulting in a division of the items according to the original scale, Thus, we concluded that the TMMS24 has a high internal consistency, good reliability and validity, offering us a suitable and reliable tool which we can conduct investigations in different areas such as the sports universe