摘要：The affective domain, mathematical processes and the characteristics of the pedagogical practice of the teacher in the classroom are influential factors in the academic performance of students. However, there are no instruments to measure these factors with psychometric characteristics. Therefore, in this research two main objectives are pursued: on the one hand, the reliability and validity of an instrument is structured and evaluated in which the three constructs that have shown influence in the learning process of Mathematics are considered; and on the other hand, these constructs are evaluated through an exploratory factor analysis in order to advance in the construction of a joint scale for these factors in the study of their influence on the academic performance in Mathematics of the students. In the statistical validation of the reliability of the instrument, the process yields adequate values for each construct, but when the exploratory factor analysis is performed, the need to make adjustments in the number of items considered becomes evident, especially in the affective domain and pedagogical practice.
其他摘要：The affective domain, mathematical processes and the characteristics of the pedagogical practice of the teacher in the classroom are influential factors in the academic performance of students. However, there are no instruments to measure these factors with psychometric characteristics. Therefore, in this research two main objectives are pursued: on the one hand, the reliability and validity of an instrument is structured and evaluated in which the three constructs that have shown influence in the learning process of Mathematics are considered; and on the other hand, these constructs are evaluated through an exploratory factor analysis in order to advance in the construction of a joint scale for these factors in the study of their influence on the academic performance in Mathematics of the students. In the statistical validation of the reliability of the instrument, the process yields adequate values for each construct, but when the exploratory factor analysis is performed, the need to make adjustments in the number of items considered becomes evident, especially in the affective domain and pedagogical practice.
关键词：Dominio afectivo hacia las matemáticas;Procesos matemáticos;Recursos didácticos;Escala de medida
