## 4 Evaluation
### Result and Analysis  
The research collects the user score in four groups from questionnaire data. Figure 15 displays the user score distribution in each group. The research runs the one-way MANOVA (Multivariate Analysis of Variance) in Excel software to analyze the difference between each group's score (Table 4). The \(p\)-values data is shown as follows:  
* The \(p\)-values of the user score for Group A and D is 0.0068. The \(p\)-values for Group B and D is 0.0014. The \(p\)-values for Group C and D is 0.0148. The data indicates that the difference in the user score between the experimental groups and the control group is significant. * The \(p\)-values of the user score for Group A and B is 0.865. The data indicates that the difference in the user score between Group A and Group B is insignificant. Figure 14: User Experiment: (**a**) Group A User Test; (**b**) Group B User Test; (**c**) Online Questionaries (W)X.cn Platform, accessed on 22 September 2021. \begin{table}
\begin{tabular}{c c c c} \hline \hline  & **Single Choices** & **Multiple Choices** & **Judgment Question** \\ \hline Tutorial Module & 1 & 1 & 1 \\ Preparation Module & 2 & 1 & 1 \\ Investigation Module & 1 & 2 & 1 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Questionnaire Content Distribution. The data shows that the experimental groups have significant differences to the control group. Group A has a low difference from Group B. To study the data more deeply, the research calculates the average correct rate. Considering the failure possibility of completing the exploration, the study also collects Group A and B's completed rate and failure reason. Furthermore, the research calculates the average completed rate within the completed units as showed in Table 5. For the VR education system, five trends are obtained as follows:  
* It is encouraging that Group A/B/C has better performance in average correct rate than Group D (Control Group). Both digital and traditional media can improve the knowledge level efficiently. * Group A/B (Digital Media) has higher number than Group C (Traditional Media). Interactive technologies can enhance the education experience and result in increasing the correct rate. * Group A uses VR devices with interactive hardware characteristic, but its correct rate is 1% less than Group B (Desktop). * Compared to Group A with four failure samples, Group B has a high completion rate that only one user can not complete the exploration. * Group A has the best performance if the study filters the failure sample from data. The correct rate is 73.75%, which is higher than the Group B number (69.12%) within the completed sample. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & **Compared Group** & \multicolumn{4}{c}{**Group A and Group D**} \\ \hline SS & df & MS & F & \(p\)-value & F crit \\ \hline
46.225 & \(1\) & 46.225 & 8.17 & 0.0068 & 4.0981 \\ \hline  & **Compared Group** & \multicolumn{4}{c}{**Group B and Group D**} \\ \hline SS & df & MS & F & \(p\)-value & F crit \\ \hline
52.9 & \(1\) & 52.9 & 11.75 & 0.0014 & 4.0981 \\ \hline  & **Compared Group** & \multicolumn{4}{c}{**Group C and Group D**} \\ \hline SS & df & MS & F & \(p\)-value & F crit \\ \hline
27.225 & \(1\) & 27.225 & 6.51 & 0.0148 & 4.0981 \\ \hline  & **Compared Group** & \multicolumn{4}{c}{**Group A and Group B**} \\ \hline SS & df & MS & F & \(p\)-value & F crit \\ \hline
0.225 & \(1\) & 0.225 & 0.029 & 0.865 & 4.0981 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: One-way MANOVA Analysis Between Different Groups in Excel Software. Figure 15: User Score Distribution. In order to analyze the performance in Group A/B, the study collected the failure reasons (Table 6). The Group B user fails to complete the exploration on time. Two Group A users have the same reason. Both three users stop at Investigation and cannot complete it before the deadline. Another two Group A users reflect that the system is hard to control with VR devices and stop at Preparation Module.