Table 2.
Statistical tests of medication effects with several potential confounding variables
| Control n=18 | Pre-MPH n=18 | Post-MPH n=18 | Control vs. Pre-MPH | Pre-MPh vs. Post MPH** | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| mean | SD | mean | SD | Mean | SD | t | p | t | p | |
| RT (ms) | 506.5 | 66.9 | 816.1 | 279.1 | 653.4 | 121.8 | 4.57 | <0.01 | 2.41 | 0.027 |
| RTSD (ms) | 53.46 | 43.6 | 232.9 | 143.1 | 84.46 | 85.43 | 5.086 | <0.01 | 4.25 | 0.001 |
| OE | 2.56 | 2.99 | 7.33 | 5.841 | 4 | 4.55 | 3.088 | <0.01 | 2.78 | 0.013 |
| CE | 1.39 | 2.16 | 0.89 | 2.56 | 0.28 | 0.826 | 0.634 | 0.53 | 1.66 | 0.213 |
Abbreviations: RT, Reaction Time; RTSD, Reaction Time Standard Deviation; OE: Omission Errors; CE, Commission Errors
**
Paired t-tests for their variables.