The RMSE values presented in Table 4 indicate the acceptable prediction accuracy of the alternative models for intentions to visit during the COVID-19 pandemic , with the training data 's mean RMSE value equalling 0.2806 and the testing data 's mean RMSE value equalling 0.2904 . The RMSE values presented in Table 5 likewise reveal the acceptable prediction accuracy of the alternative models for intentions to travel after the COVID-19 pandemic , with the training data 's mean RMSE value equalling 0.3859 and the testing data 's mean RMSE value equalling 0.4084 .