Table 3.
Multiple regression analyses of baseline and difference in scores on continuous outcome measures evaluating success of an educational intervention at 7-month follow-up*
| Difference at 7 month follow-up | |||||
|---|---|---|---|---|---|
| Scores | No† | Baseline Mean (95% Cl) | Mean (95% Cl) | Effect size | P value |
| Skills | |||||
| Standardized patients' rapport and satisfaction | |||||
| Control | 50 | 67.9 (61.4 to 74.5) | -0.5 (-6.1 to 5.0) | -0.02 | 0.12 |
| Intervention | 54 | 67.9 (64.9 to 70.9) | 6.0 (2.6 to 9.5) | 0.54 | |
| Standardized patients' confidentiality | |||||
| Control | 50 | 35.2 (29.3 to 41.1) | 4.0 (-10.3 to 18.3) | 0.19 | <0.01 |
| Intervention | 54 | 42.2 (31.0 to 53.4) | 53.5 (49.3 to 57.8) | 1.28 | |
| Observer competence | |||||
| Control | 50 | 51.8 (45.9 to 57.6) | 2.6 (-3.0 to 8.1) | 0.12 | 0.01 |
| Intervention | 54 | 48.8 (46.2 to 51.4) | 15.3 (11.1 to 19.5) | 1.55 | |
| Observer risk assessment | |||||
| Control | 50 | 53.3 (49.4 to 57.2) | 0.5 (-3.0 to 4.1) | 0.04 | 0.03 |
| Intervention | 53 | 50.7 (44.2 to 57.2) | 9.9 (5.8 to 14.0) | 0.41 | |
| Self-perceived competency | |||||
| Comfort (process) | |||||
| Control | 49 | 71.1 (66.4 to 75.8) | 0.2 (-3.5 to 4.0) | 0.01 | 0.03 |
| Intervention | 54 | 71.8 (69.7 to 73.9) | 7.1 (4.7 to 9.4) | 0.89 | |
| Comfort (substantive) | |||||
| Control | 50 | 58.1 (52.3 to 63.9) | 0.3 (-5.1 to 5.6) | 0.01 | <0.01 |
| Intervention | 54 | 60.5 (56.1 to 64.8) | 15.8 (13.8 to 17.8) | 0.97 | |
| Knowledge and skill (process) | |||||
| Control | 50 | 65.9 (60.4 to 71.5) | 0.7 (-4.0 to 5.3) | 0.03 | <0.01 |
| Intervention | 53 | 66.3 (63.6 to 69.1) | 15.6 (12.1 to 19.2) | 1.54 | |
| Knowledge and skill (substantive) | |||||
| Control | 50 | 52.1 (44.5 to 59.7) | 2.8 (-2.0 to 7.6) | 0.10 | <0.01 |
| Intervention | 54 | 57.5 (53.8 to 61.2) | 20.6 (18.2 to 22.9) | 1.50 | |
| Doctors' self rating on taped consultation | |||||
| Control | 49 | 56.6 (52.7 to 60.5) | 3.1 (0.6 to 5.6) | 0.22 | <0.01 |
| Intervention | 54 | 56.9 (55.7 to 58.1) | 17.8 (15.9 to 19.7) | 4.01 | |
| Knowledge test | |||||
| Control | 49 | 33.3 (31.6 to 35.0) | 3.1 (0.6 to 5.6) | 0.51 | <0.01 |
| Intervention | 54 | 32.8 (31.6 to 34.0) | 14.6 (13.0 to 16.2) | 3.31 | |
*
Models include gender, age group, language other than English, type of practice, average hours worked per week, and college exams taken. Difference scores are also adjusted for baseline score and training obtained from elsewhere over 7-month period. Robust standard errors allowed for cluster randomization. All scores out of 100.
†
Variation due to missing values in the rating forms of some participants