Using Theory of Planned Behaviour to Predict Adult Engagement in Science in Taiwan

A/Prof. Chun-Yen Tsai1

1National Sun Yat-sen University, , Taiwan

In psychology, the theory of planned behaviour (TPB) is a theoretical model that links one’s beliefs and behaviour (Ajzen, 1991). Engagement in science refers to the extent of participation in scientific learning activities (Chang et al., 2007; Lin et al., 2013). This study used TPB to predict adult engagement in science in Taiwan. The data were collected from 1,657 citizens by survey interviews and quantitatively analysed. Results showed that adult interest in science had the antecedents of attitude toward science (β= 0.31, p < .001), self-concept in science (β= 0.11, p < .001), and self-efficacy in science (β= 0.20, p < .001). Meanwhile, adult interest in science had an effect on engagement in science (β= 0.26, p < .001). The Structural Equation Modelling showed that the above model had the acceptable model fits (CFI = .93; GFI = .92; RMSEA = .05; SRMR = .05). It is suggested that adults’ interest in science was the considerable factor to promote their engagement in science. Meanwhile, adults’ attitude toward science, self-concept in science, and self-efficacy in science were the crucial parts to promote their interest in science.


Chun-Yen Tsai is an associate professor at National Sun Yat-sen University. His research focuses on educational technology and science education. Currently, he participates in some projects granted by the Ministry of Science and Technology in Taiwan, which are related to the studies about educational technology and adult science education.


The Asian Studies Association of Australia (ASAA) is the peak body of university experts and educators on Asia in Australia. Established in 1976, we promote and support the study of Asia in Australian universities and knowledge of Asia among the broader community. Our membership is drawn mainly from academics and students, but also includes industry and government Asia experts. We take a strong interest in promoting knowledge about Asia in schools and in contributing to state and Commonwealth government policies related to Asia. We provide informed comment on Asia to a broad public through our bulletin, Asian Currents, and specialist research articles in our journal, Asian Studies Review. Four book series published under our auspices cover Southeast Asia, South Asia, East Asia and Women in Asia.

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