It can be observed that all the fit indices of TfT-AM-SS Model I are satisfactory (Table 5); however, 5 individual parameters out of 13 obtained levels of significance higher than 0.05. Therefore, three more models were further established in order to obtain the optimized TfT-AM-SS Model for construction engineering education (Table 4). Although the overall fit indices do not change significantly from Model I to Model IV (Table 5), the likelihood ratios of Model II (0.42) and Model III (3.59) are significant (both within the critical value of X2 at a significance level of 0.05, i.e., 0.599).