# Enhancing Complex Injection Mold Design Validation Using Multicombined RV Environments
## 2 Materials and Methods
### Participants
\begin{table}
\begin{tabular}{c l l} \hline \hline
**Questions** & \multicolumn{2}{c}{**Likert Scale—Limits Value**} \\ \hline \multirow{4}{*}{\begin{tabular}{c} Detection of \\ dimensional errors \\ \end{tabular} } & Q1. Evaluate the conventional CAD software environment in operations to & 1—Very dissatisfied \\  & identify dimensional design errors in complex injection molds & 7—Very satisfied \\ \hline \multirow{4}{*}{\begin{tabular}{c} Functional error \\ detection \\ \end{tabular} } & Q2. Evaluate the VR environment in operations to identify dimensional design & 1—Very dissatisfied \\  & errors in complex injection molds & 7—Very satisfied \\ \hline \multirow{4}{*}{\begin{tabular}{c} Design \\ understanding \\ \end{tabular} } & Q3. Evaluate the level of clarity and ease of acquiring information provided by & 1—Very dissatisfied \\  & the conventional CAD software environment during the functional error review & 7—Very satisfied \\ \cline{2-3}  & Q4. Evaluate the level of clarity and ease of acquiring information provided by & 1—Very dissatisfied \\  & the VR environment during the functional error review of injection mold design. & 7—Very satisfied \\ \hline \multirow{4}{*}{\begin{tabular}{c} Design \\ understanding \\ \end{tabular} } & Q5. Evaluate the level of efficiency of the conventional CAD software & 1—Very dissatisfied \\  & environment to help understand the concept or detailed design of a complex injection mold & 7—Very satisfied \\ \cline{2-3}  & Q6. Evaluate the level of efficiency of the VR environment to help understand & 1—Very dissatisfied \\  & the concept or detailed design of a complex injection mold & 7—Very satisfied \\ \hline \multirow{4}{*}{\begin{tabular}{c} Assembly and \\ disassembly \\ validation \\ \end{tabular} } & Q7. Evaluate the help offered by the conventional CAD software environment in & 1—Very dissatisfied \\  & validation & 7—Very satisfied \\ \cline{2-3}  & Q8. Evaluate the help offered by the VR environment in validation operations & 1—Very dissatisfied \\  & for the assembly and disassembly of the injection mold design & 7—Very satisfied \\ \hline \multirow{4}{*}{\
\begin{tabular}{c} Influence on the \\ training process \\ \end{tabular} } & Q9. Evaluate the influence of the conventional CAD software environment on & 1—Very dissatisfied \\  & the training process of new professionals, without prior experience, in this & 7—Very satisfied \\ \cline{2-3}  & Q10. Evaluate the influence of the VR environment in the training process of & 1—Very dissatisfied \\  & new professionals, without previous experience, in this industrial sector. & 7—Very satisfied \\ \hline \multirow{4}{*}{
\begin{tabular}{c} Satisfaction degree \\ \end{tabular} } & Q11. Evaluate the level of satisfaction with the use of VR technology in the field & 1—Very dissatisfied \\  & of injection mold design & 7—Very satisfied \\ \cline{2-3}  & Q12. Evaluate the level of satisfaction with the use of VR technology in the & 1—Very dissatisfied \\  & assembly and disassembly of injection molds & 7—Very satisfied \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Survey carried out to assess the application of VR technology in the injection mold industrial sector. To ensure the adequacy of the selected population size for subsequent statistical analysis of the conducted survey, an initial population calculation is performed using GPower statistical calculation software (version 3.1, University of Dusseldorf, Dusseldorf, Germany) [32; 33]. Considering that the survey's objective, included in the conducted activity, involves comparing and evaluating the influence of VR technology versus conventional CAD environments, a \(t\)-test comparative analysis is proposed. Table 3 outlines the magnitude and selection of parameters established in the GPower statistical calculation software for calculating the initial population. A statistical test was used to establish the type of statistical test to perform.