Many studies have examined diﬀerent ﬁelds of higher education expansion as well as the understanding of expansion through the relationship between higher education and other academic ﬁelds. This study examined how the expansion of higher education impacts STEM (science, technology, engineering and mathematics) programs and diﬀerentiates in the trajectories of Taiwan. This study aims to explore the expansion phenomenon related to the enrollment in STEM in expanding higher education. We used the classical ARIMA model to provide forecasts for the Ministry of Education (MOE) dataset. We then implemented ARIMAX (a multivariate autoregressive integrated moving average model) method to deal with the two concurrent series. The data source of this study, the time series data of student enrollment in the STEM programs and total student numbers (1950 to 2018), retrieved from MOE, Taiwan. We conducted the cross-correlation function to check the relationships between the series. We employed the ARIMAX methods to select the best ﬁt model to predict student enrollment in STEM programs. The result revealed the selected ARIMAX(1,2,1) works well to establish the best ﬁt model to predict enrollment in STEM programs. This ﬁnding provided implication to educational policy makers to implement the innovative STEM programs.
ICIC Express Letters Part B: Applications 11(2), p.121-128