Table 2.
Change in Mean Frequency of Accurate Observations for Intervention and Control Groups
| Paired Pre- and Post-course Images | Intervention (n = 24) | Control (n = 34) | Difference Between Intervention and Control (SD) | |||
|---|---|---|---|---|---|---|
| Mean Δ Score* (SD) | P-value† | Mean Δ Score* (SD) | P-value† | Mean Δ Score (SD) ‡ | P-value† | |
| 1 | 5.87 (0.89) | <.001 | 0.75 (0.73) | 0.31 | 5.12 (1.16) | <.001 |
| 2 | 4.99 (0.99) | <.001 | 1.30 (0.81) | 0.11 | 3.68 (1.29) | 0.006 |
| 3 | 2.48 (0.81) | <.001 | −0.61 (0.67) | 0.36 | 3.09 (1.05) | 0.005 |
| 4 | 4.72 (1.12) | <.001 | −0.74 (1.0) | 0.46 | 5.46 (1.57) | 0.001 |
| 5 | 8.89 (1.44) | <.001 | 0.73 (1.19) | 0.54 | 8.15 (1.86) | <.001 |
| TOTAL‡ | 5.41 (0.63) | <.001 | 0.36 (0.53) | 0.49 | 5.05 (0.82) | <.001 |
*Post-course frequency of accurate observations minus pre-course frequency
†P-values based on paired t-tests from generalized estimating equations
‡Total score were calculated by adding mean umber of accurate observations for each image then dividing by five