The objective of this research was to develop and validate a structural equation model of causal factors influencing achievement in Calculus 1 for students in the Faculty of Engineering and Architecture. The sample consisted of 375 first-year students, obtained through stratified random sampling. Research instruments included questionnaires and an achievement test. Data were analyzed using Structural Equation Modeling (SEM). Results showed that the developed model was consistent with empirical data (χ2 = 6.45, df = 5, p = .07, RMSEA = .038, CFI = .95, GFI = 1.00, AGFI = 0.99). Factors directly influencing achievement in Calculus 1 were mathematical aptitude (β = .08), achievement motivation (β= .22), mathematical background knowledge (β = .20), attitude towards calculus (β = .27), and learning behavior (β= .28). Achievement motivation and attitude towards calculus also had indirect effects on Calculus 1achievement through learning behavior. This model explained 70% of the variance in Calculus 1 achievement. The findings highlight the importance of developing mathematical aptitude, enhancing motivation, and ensuring adequate mathematical background knowledge to promote achievement in Calculus 1. They also emphasize the role of attitudes and achievement motivation in fostering appropriate learning behaviors. These findings can be applied to improve teaching methods and guide students in engineering and architecture programs to enhance their academic achievement in Calculus 1 courses.

Authors:
Anek Putthidech, Rajamangala University of Technology Suvarnabhumi, Thailand
Amnaj Sukjam, Rajamangala University of Technology Suvarnabhumi, Thailand
Sangtong Boomying, Rajamangala University of Technology Suvarnabhumi, Thailand
Suwit Somsupaprungyot, Rajamangala University of Technology Suvarnabhumi, Thailand

About the Presenter(s)
Asst. Prof. Dr. Anek Putthidech, Lecturer, Department of Mathematics, Faculty of Science and Technology, Rajamangala University of Technology Suvarnabhumi, Phra Nakhon Si Ayutthaya Province, Thailand.

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