Table 2.
Computer and Application Use Summary Metrics Over Three-Month Interval (N = 60)
| Variable | Total (N = 60) | Healthy (N = 39) | MCI (N = 21) | Effect Size |
|---|---|---|---|---|
| M (SD) | M (SD) | M (SD) | Cohen’s d | |
| Computer Use Variables | ||||
| Computer Use Time (minutes)* | 91.0 (77.1) | 105.9 (88.9) | 63.4 (36.4) | 0.57 |
| Computer Use Time Variability (minutes) | 61.3 (38.8) | 67.8 (43.0) | 49.2 (26.5) | 0.49 |
| Number of Sessions* | 10.1 (6.8) | 11.6 (7.6) | 7.3 (3.8) | 0.65 |
| Time of First Session* | 10:42am (2:43:38) | 10:04am (2:37:11) | 11:53am (2:34:52) | 0.70 |
| Time of Last Session | 4:47pm (2:35:39) | 5:04pm (2:41:15) | 4:14pm (2:22:43) | 0.32 |
| % Days with at least One Session | 65.1% (34.2) | 70.4% (33.1) | 55.3% (34.7) | 0.45 |
| Application Use Variables | ||||
| Email Use Time, minutes* | 322.0 (750.4) | 398.4 (841.0) | 46.8 (114.4) | 0.53 |
| Game Use Time, minutes | 600.4 (1839.6) | 504.7 (1404.3) | 424.4 (1748.0) | 0.07 |
| Browser Use Time, minutes* | 4224.5 (4607.9) | 5078.2 (5212.6) | 2602.9 (2757.6) | 0.60 |
| Teleconferencing Use Time, minutes | 2.5 (12.6) | 3.2 (15.2) | 0.0 (0.0) | 0.26 |
| Finance Use Time, minutes | 32.6 (109.9) | 30.4 (111.6) | 42.1 (116.4) | 0.08 |
| Search Use Time, minutes | 338.6 (1070.9) | 436.2 (1324.2) | 160.4 (288.0) | 0.27 |
| Word Processing Use Time, minutes* | 215.3 (465.5) | 299.9 (542.3) | 60.0 (242.1) | 0.54 |
| Email Use, Days* | 16.9 (29.9) | 20.7 (34.3) | 6.5 (13.8) | 0.52 |
| Game Use, Days | 9.5 (23.1) | 11.4 (25.7) | 4.0 (12.9) | 0.33 |
| Browser Use, Days | 56.4 (30.9) | 61.7 (30.6) | 48.4 (30.4) | 0.51 |
| Teleconferencing Use, Days | 0.3 (1.6) | 0.4 (2.0) | 0.0 (0.0) | 0.26 |
| Finance Use, Days | 2.1 (8.4) | 2.6 (10.3) | 1.5 (3.3) | 0.14 |
| Search Use, Days* | 32.2 (25.3) | 36.5 (27.5) | 23.6 (18.4) | 0.59 |
| Word Processing Use, Days** | 10.8 (19.0) | 15.5 (22.3) | 1.8 (3.7) | 0.77 |
Note: Computer use variables are expressed as quantities per day. Application use variables are expressed as total quantities over the three-month period;
*
p < .05;
**
p < .01