## 3 Results
### Students' Opinions towards the Four Teaching Tools--Multivariate Analysis
#### 3.2.2 In-Depth Analysis of Clusters Obtained for PowerPoint Presentations  
Students who strongly agree with the benefits of PowerPoint presentations are also predominantly females and young (aged 18-20), who enjoy using multimedia resources in the learning process. Most of them use Internet services mainly for communication; again, one-third of them use such services mainly for entertainment or information, and almost 10% use the Internet for domestic facilities. Students who agree to a moderate extent with the benefits of PowerPoint presentations are also mostly females, aged 18-20, but only a third of them use multimedia resources for learning. Most of them use Internet services mainly for communication, followed by entertainment, information and domestic facilities sporadically. The percentage of males among the students who like PowerPoint presentations to a lesser extent is increasing, and the age structure is perfectly balanced. They do not enjoy very much using multimedia resources in the learning process; just over \begin{table}
\begin{tabular}{l c c c c c} \hline \hline \multicolumn{2}{c}{**General Idea: PowerPoint Presentations Best Help to Understand the Concepts Presented, Capture Attention and Stimulate Interest Best, Helping to Make Learning Easier and Being the Clearest Way to Explain Concepts.**} & Cluster 1— & Cluster 2— & Cluster 3— & Cluster 4— & \\  & agreement to a & agreement to a & agreement to an & agreement to a & agreement to a & agreement to a \\  & very high extent & high extent & average extent & low extent & \\  & n (\%) & n (\%) & n (\%) & n (\%) & \\ \hline Sex & & & & & \\  & Male & 27 (19.1) & 19 (23.8) & 45 (21.8) & 40 (32.3) & \\  & Female & 114 (80.9) & 61 (76.3) & 161 (78.2) & 84 (67.7) & \\ Age group & & & & & & \\  & 18–20 years & 83 (58.9) & 35 (43.8) & 117 (56.8) & 62 (50.0) & \\  & 21–24 years & 38 (27.0) & 24 (30.0) & 52 (25.2) & 44 (35.5) & \\  & over 25 years & 20 (14.2) & 21 (26.3) & 37 (18.0) & 18 (14.5) & \\ Level of openness to autonomous use of multimedia resources in learning: & & & & & \\  & 1—total & 6 (4.3) & 3 (3.8) & 6 (2.9) & 5 (4.0) & \\  & disagreement & 21 (14.9) & 5 (6.3) & 33 (16.0) & 24 (19.4) & \\  & 3—neutral & 35 (24.8) & 38 (47.5) & 93 (45.1) & 55 (44.4) & \\  & 4—partial agreement & 29 (20.6) & 23 (28.7) & 38 (18.4) & 26 (21.0) & \\  & 5—total agreement & 50 (35.5) & 11 (13.8) & 36 (17.5) & 14 (11.3) & \\ Internet services mainly used for information (on a scale of 1 to 4): & & & & & \\  & 1—most important & 53 (37.6) & 30 (37.5) & 68 (33.0) & 29 (23.4) & \\  & 2—important & 45 (31.9) & 32 (40.0) & 86 (41.7) & 51 (41.1) & \\  & 3—less important & 37 (26.2) & 17 (21.3) & 46 (22.3) & 38 (30.6) & \\  & 4—least important & 6 (4.3) & 1 (1.3) & 6 (2.9) & 6 (4.8) & \\ Internet services mainly used for communication (on a scale of 1 to 4): & & & & & \\  & 1—most important & 94 (66.7) & 47 (58.8) & 128 (62.1) & 65 (52.4) & \\  & 2—important & 31 (22.0) & 27 (33.8) & 55 (26.7) & 41 (33.1) & \\  & 3—less important & 14 (9.9) & 5 (6.3) & 22 (10.7) & 17 (13.7) & \\  & 4—least important & 2 (1.4) & 1 (1.3) & 1 (0.5) & 1 (0.8) & \\ Internet services mainly used for entertainment (on a scale of 1 to 4): & & & & & \\  & 1—most important & 54 (38.3) & 24 (30.0) & 71 (34.5) & 34 (27.4) & \\  & 2—important & 47 (33.3) & 24 (30.0) & 75 (36.4) & 44 (35.5) & \\  & 3—less important & 33 (23.4) & 28 (35.0) & 45 (21.8) & 38 (30.6) & \\  & 4—least important & 7 (5.0) & 4 (5.0) & 15 (7.3) & 8 (6.5) & \\ Internet services mainly used for domestic facilities (on a scale of 1 to 4): & & & & & \\  & 1—most important & 13 (9.2) & 6 (7.5) & 14 (6.8) & 2 (1.6) & \\  & 2—important & 20 (14.2) & 19 (23.8) & 39 (18.9) & 11 (8.9) & \\  & 3—less important & 27 (19.1) & 19 (23.8) & 66 (32.0) & 31 (25.0) & \\  & 4—least important & 81 (57.4) & 36 (45.0) & 87 (42.2) & 80 (64.5) & \\ \hline Total & & 141 (100.0) & 80 (100.0) & 206 (100.0) & 124 (100.0) & \\ \hline \hline \end{tabular}
\end{table}