CONSTRUCTION AND VALIDATION OF AN INSTRUMENT FOR MEASURING FACTORS INFLUENCING TO ALGEBRAIC LEARNING ACHIEVEMENT

Abstract

The objective of this research was the elaboration and validation of an instrument to the objective of this research was to elaborate and validate an instrument for measuring the factors influencing on algebraic learning achievement. With this purpose to verify the usefulness and validity of the instrument, the analysis of factors influencing on algebraic learning achievement was used in this research project. The designed instrument had 60 items that identified the perception of the students with respect to 7 variables: achievement emotions, engagement to learning, and student faith in teacher, achievement motivation, categorization skill, mathematical representation, and algebraic learning achievement. 160 surveys were applied randomly in different organizations during 2022. The results of the validation were as follows. The instrument had content validity through the Panel of Experts, and the reliability with Conbrach alpha. This showed that they were interval consistent. The results of Kendall coefficient of concordance of items of characteristic factor variables were also found. Each item of each factor variable had a concordance with the other items which were statistically significant. The validity of the construct was found with the test KMO and the sphericity of Bartlett. The contributions of this article were one questionnaire and one examination that could be applied to all demonstration schools, since it is regularly associated with algebraic learning achievement in the schools under the university sector. It could be concluded that the instrument met the optimal validity and could be used in the future school research studies.