“…Furthermore, an exploratory factor analysis (EFA) with the principal component method was performed for the data collected from the pretest. The analysis results show that the loadings of all the items on their underlying constructs are all greater than 0.50 [59]. As such, the percentages of variation explained by PU, CUI, CF, ST, and PEU are 36.195%, 19.026%, 1.438%, 10.245%, and 6.966%, respectively.…”