Abstract:
This research has three objectives; 1) to find the correlation among a achievement motivation, attitudes towards mathematics, parents' support, teacher's teaching quality with the mathematics learning achievement 2) to develop and verify the validity of the factor-influencing model which has an influence on the achievement of mathematics learning of students in Mattayomsuksa 3 under the Secondary Education Service Area Office 32, and 3) to study how much direct and indirect influences of variables in the factor - influencing model have on the achievement of mathematics learning of Mattayomsuksa 3 students under the Office of the Secondary Education Service Area of 32. Samples in this research are 690 students in Mattayomsuksa 3 under the Office of the Secondary Education Service Area of 32, who enrolled in the second semester in the academic year of 2019. Tool used in this research was a constructed 5-level rating scale questionnaires which divided into 2 parts. Part 1, general information and the average mathematics curriculum results of Mattayomsuksa 3 students. Part 2, divided into 5 different aspects including; 1.) Achievement motivation with 20 questions, Discrimination of this aspect was found to ranging from 0.275 to 0.675 and reliability was 0.892. 2.) Attitudes toward mathematics learning with 12 questions. Discrimination ranged from 0.318 to 0.610 and reliability was 0.864, 3) Parents support for learning with 15 questions. This aspect showed the discrimination ranged from 0.360 to 0.644 and reliability was 0.897. 4.) The teachers' teaching behavior with 20 questions. This aspect had discrimination ranged from 0.428 to 0.683 and reliability of 0.954. 5.) Classroom atmosphere had the discrimination ranging from 0.447 to 0.690 and reliability was 0.925. The data were analyzed using basic statistics, the Confirmatory Factor Analysis and Structural Equation Modeling Analysis.
The results of the research were as follows.
1. The result of relation among achievement motivation, attitudes towards mathematics, parents' support, teacher's teaching quality, classroom atmosphere with the mathematics learning achievement were all factors positively correlated with the mathematics learning achievement with the correlation coefficients of 0.247, 0.527, 0.175, 0.497, and 0.298 respectively.
2. Being developed, the causal factor model affecting the achievement of mathematics learning of Mattayomsuksa 3 students under the Office of the Secondary Education Service Area 32 corelated with empirical data in which all statistics used passed all criteria with statistic shown as follows; X^2=133.139 df = 108 P= 0.051 CFI = 0.993 TLI = 0.992 RMSEA = 0.018 SRMR = 0.030 และค่า X^2=/ df = 1.231
3. Results of direct and indirect influence analysis were found that the variables that had direct influence on mathematics learning achievement were attitudes towards mathematics. The variables that had indirectly influence on mathematics achievement were achievement motivation, parents' support and classroom atmosphere. and teacher's teaching quality had direct and indirect influence on mathematics learning achievement.