## 3 Results
### Students' Opinions towards the 4 Teaching Tools--Univariate Analysis  
The analysis of the students' opinion scores on the four teaching tools, compared according to the proposed criteria, shows the following (Table 2, Figure 1): \begin{table}
\begin{tabular}{l l l l} \hline  & & \(n\) & \% \\ \hline \multirow{2}{*}{Sex} & male & 131 & 23.8 \\  & female & 420 & 76.2 \\ \hline \multirow{2}{*}{Age group} & 18–20 years & 297 & 53.9 \\  & 21–24 years & 158 & 28.7 \\  & over 25 years & 96 & 17.4 \\ \hline \multirow{4}{*}{University} & UMF “[PERSON]”, Iasi & 356 & 64.6 \\  & UMF, Craiova & 108 & 19.6 \\  & UMF “Victor Babes”, Timisoara & 80 & 14.5 \\  & UMF “Iuliu Haiteganu”, Cluj Napoca & 7 & 1.3 \\ \hline \multirow{2}{*}{Previously graduated from university studies} & yes & 55 & 10.0 \\  & no & 496 & 90.0 \\ \hline \multirow{2}{*}{Parents’ level of education} & University & 232 & 42.1 \\  & High school & 298 & 54.1 \\  & Pre-high school & 21 & 3.8 \\ \hline Total & & 551 & 100.0 \\ \hline \end{tabular}
\end{table} 
Table 1: General characteristics of the study group. \begin{table}
\begin{tabular}{l l l l l} \hline  & **RMT** & **RMP** & **RMF** & **RMO** \\  & **m \(\pm\) SD** & **m \(\pm\) SD** & **m \(\pm\) SD** \\ \hline \multirow{2}{*}{Sex} & \multirow{2}{*}{3.81 \(\pm\) 1.047} & 3.27 \(\pm\) 0.880 & 3.49 \(\pm\) 0.984 & 3.37 \(\pm\) 0.995 \\  & 4.09 \(\pm\) 0.853 & 3.47 \(\pm\) 0.809 & 3.63 \(\pm\) 0.851 & 3.30 \(\pm\) 0.923 \\  & \(p\) = 0.010 * & \(p\) = 0.022 * & \(p\) = 0.121 * & \(p\) = 0.567 * \\ \multirow{2}{*}{Age group} & \multirow{2}{*}{4.16 \(\pm\) 0.840} & 3.45 \(\pm\) 0.828 & 3.49 \(\pm\) 0.892 & 3.16 \(\pm\) 0.956 \\  & 3.84 \(\pm\) 0.973 & 3.34 \(\pm\) 0.888 & 3.67 \(\pm\) 0.865 & 3.38 \(\pm\) 0.887 \\  & over 25 years & 3.91 \(\pm\) 0.951 & 3.46 \(\pm\) 0.730 & 3.84 \(\pm\) 0.849 & 3.71 \(\pm\) 0.859 \\  & \(p\) = 0.001 * & \(p\) = 0.357 * & \(p\) = 0.002 * & \(p\) = 0.000 * \\ \multirow{2}{*}{Use the Internet mainly for information:} & \multirow{2}{*}{3.66 \(\pm\) 1.221} & 3.36 \(\pm\) 0.974 & 3.59 \(\pm\) 0.880 & 3.37 \(\pm\) 1.012 \\  & 4.17 \(\pm\) 0.743 & 3.37 \(\pm\) 0.897 & 3.47 \(\pm\) 0.928 & 3.13 \(\pm\) 0.960 \\ \multirow{2}{*}{Important} & \multirow{2}{*}{4.02 \(\pm\) 0.871} & 3.32 \(\pm\) 0.779 & 3.51 \(\pm\) 0.874 & 3.14 \(\pm\) 0.889 \\  & 3.95 \(\pm\) 1.016 & 3.57 \(\pm\) 0.802 & 3.81 \(\pm\) 0.835 & 3.67 \(\pm\) 0.882 \\  & \(p\) = 0.329 * & \(p\) = 0.031 * & \(p\) = 0.003 * & \(p\) = 0.000 * \\ \multirow{2}{*}{Use the Internet mainly for communication:} & \multirow{2}{*}{4.60 \(\pm\) 0.659} & 3.34 \(\pm\) 0.889 & 3.21 \(\pm\) 1.030 & 2.91 \(\pm\) 1.308 \\  & 3.56 \(\pm\) 1.076 & 3.30 \(\pm\) 0.902 & 3.45 \(\pm\) 0.975 & 3.18 \(\pm\) 0.972 \\ \multirow{2}{*}{Important} & \multirow{2}{*}{3.88 \(\pm\) 0.937} & 3.36 \(\pm\) 0.807 & 3.62 \(\pm\) 0.889 & 3.41 \(\pm\) 0.975 \\ \multirow{2}{*}{Most important} & \multirow{2}{*}{4.16 \(\pm\) 0.832} & 3.47 \(\pm\) 0.826 & 3.62 \(\pm\) 0.866 & 3.31 \(\pm\) 0.911 \\  & \(p\) = 0.000 ** & \(p\) = 0.248 * & \(p\) = 0.408 * & \(p\) = 0.324 * \\ \hline \end{tabular}
\end{table} 
Table 2: Opinion scores for the 4 teaching tools—univariate analysis. The gender comparative study of the questionnaire responses shows that females agree to a large extent with the benefits of classic oral presentations, with a significantly higher score than males (\(p\) = 0.010), and also with the benefits of PowerPoint presentations, while males agree only to a medium extent with the latter tool (\(p\) = 0.022). Females also tend to agree significantly more than males with the benefits of educational videos, while males agree slightly more with the benefits of online documentary sources. Students' opinions about the qualities of investigated teaching tools are statistically significant different between the three age groups identified. Students aged 18-20 years prefer classic oral presentations first, followed by educational videos, PowerPoint presentations and lastly online documentary sources.