# Personalizing Environmental Awareness through Smartphones Using AHP and PROMETHE II
## 5 Evaluation
### Data Analysis and Discussion
The analysis of participants' responses on question 4 shows that a little progress was made concerning the use of reusable foodborne; although after using the application a remarkable percentage, namely 21.67% + 19.17% = 40.84%, continued to prefer disposable foodborne at parties because of the convenience they offer, it should be noted that the corresponding percentage was too high before the application, namely 47.50% + 24.17% = 71.67%, while after using the application, the percentages of the preference for reusable foodborne were almost tripled (from 5.83% + 6.67% = 12.5% to 14.17% + 21.67% = 35.84%). Furthermore, the survey reveals that the participants learned more about the refills of products and started to prefer them instead of a complete product (from 10.83% + 6.67% = 17.5% to 40.83% + 30.83% = 71.66%). According to paired-sample t test comparing the environmental awareness before and after using the application (pre-test awareness = 51.50%, post-test awareness = 72.47%,  
Figure 2: Frequency distribution of the answers regarding system’s usefulness. difference = \(-20.97\)), the results showed that there was a significant improvement in students' consciousness about consumption of things (t = \(-12.043\), \(p<0.05\)). \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multicolumn{8}{c}{**Environmental Awareness Survey: Conscious Consuming**} \\ \hline
**Pre-Score** & **5** & **4** & **3** & **2** & **1** & **Mean** & **Awareness** \\
**Post-Score** & **N (\%)** & **N (\%)** & **N (\%)** & **N (\%)** & **N (\%)** & **N (\%)** & **(\%)** & **(\%)** \\ \hline
1. I prefer to print the document on & 11 (9.17) & 14 (11.67) & 31 (25.83) & 43 (35.83) & 21 (17.50) & 2.59 & 51.83 \\ both side of the paper. & 31 (25.83) & 34 (28.33) & 33 (27.50) & 15 (12.50) & 7 (5.83) & 3.56 & 71.17 \\ \hline
2. I prefer to send e-mail instead of & 25 (20.83) & 24 (20.00) & 38 (31.67) & 24 (20.00) & 9 (7.50) & 3.27 & 65.33 \\ hard copy output. & 50 (41.67) & 46 (38.33) & 19 (15.83) & 5 (4.17) & 0 (0.00) & 4.18 & 83.50 \\ \hline
3. I prefer to read the document on & 8 (6.67) & 16 (13.33) & 29 (24.17) & 39 (32.50) & 28 (23.33) & 2.48 & 49.50 \\ computer instead of printing it. & 32 (26.67) & 33 (27.50) & 35 (29.17) & 16 (13.33) & 4 (3.33) & 3.61 & 72.17 \\ \hline
4. I prefer to use reusable, instead & 7 (5.83) & 8 (6.67) & 19 (15.83) & 29 (24.17) & 57 (47.50) & 1.99 & 39.83 \\ and reunions. & 17 (14.17) & 26 (21.67) & 28 (23.33) & 23 (19.17) & 26 (21.67) & 2.88 & 57.50 \\ \hline
5. I prefer to buy refills instead of a & 13 (10.83) & 8 (6.67) & 31 (25.83) & 48 (40.00) & 20 (16.67) & 2.55 & 51.00 \\ complete product. & 49 (40.83) & 37 (30.83) & 14 (11.67) & 13 (10.83) & 7 (5.83) & 3.90 & 78.00 \\ \hline \multicolumn{8}{c}{_Pre-test Mean_} & \multicolumn{3}{c}{_51.50_} \\ _5: Every Time_ & & & _Post-test Mean_ & & & _72.47_ \\ _4: Often_ & & & Difference & & \(-20.97\) \\ _3: Sometimes_ & & & Standard Deviation & & 3.894 \\ _2: Rarely_ & & & Confidence Level (95\%) & & & 4.834 \\ _1: Never_ & & & Pearson Correlation & & 0.917 \\ _N: Number of Students_ & & & t Stat & \(-12.043\) \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Frequency distribution of the answers and pre-test/post-test results related to conscious consuming.