| Fall 2003 | Sample=37 | Fall 2004 | Sample=49 | Combined | ||||
| mean | std dev | mean | std dev | mean | avg std dev | |||
| Sleep | 116.9 | 17.46 | 114.93 | 15.76 | 115.915 | 16.61 | ||
| Study | 38.27 | 21.5 | 31.94 | 16.42 | 35.105 | 18.96 | ||
| Class/Lab | 31.78 | 14.97 | 29.43 | 7.46 | 30.605 | 11.215 | ||
| Library | 2.05 | 2.87 | 1.27 | 2.17 | 1.66 | 2.52 | ||
| Class related Computer Time | 5.78 | 8.57 | 8.35 | 11.48 | 7.065 | 10.025 | ||
| Nonclass related Computer Time | 18.38 | 25.24 | 19.81 | 17.87 | 19.095 | 21.555 | ||
| 5.28 | 18.29 | 3.47 | 4.01 | 4.375 | 11.15 | |||
| Chatting | 9.05 | 10.07 | 11.34 | 12.61 | 10.195 | 11.34 | ||
| Games | 2.75 | 4.3 | 4.29 | 7.19 | 3.52 | 5.745 | ||
| TV | 18.22 | 20.86 | 17.56 | 15.34 | 17.89 | 18.1 | ||
| Phone | 3.08 | 2.9 | 6.42 | 7.83 | 4.75 | 5.365 | ||
| Hanging Out | 36.99 | 24.61 | 40.09 | 19.09 | 38.54 | 21.85 | ||
| Exercise | 8.82 | 8.75 | 5.67 | 8.68 | 7.245 | 8.715 | ||