Table 2.
# Items | Mean Intervention Student Scores, % (SD) (N = 41 students) | Mean Control Student Scores, % (SD) (N = 44 students) | Effect Size | P | |
---|---|---|---|---|---|
Gender, % female | 31.7 | 52.3 | .06 | ||
USMLE Step 1 scores | 216.9 (20.2) | 215.0 (16.1) | 0.11 | .64 | |
GPA | 3.39 (0.39) | 3.45 (0.34) | −0.16 | .48 | |
Rotation | 1, 3, 5, 7, 10, 12 | 2, 4, 6, 8, 9, 11 | |||
Total* | 35 | 64.1 (17.4) | 51.4 (12.5) | 0.85 | .0002 |
Subscales* | |||||
a. Sexual history inquiry | 11 | 74.1 (19.8) | 56.6 (13.0) | 1.07 | < .0001 |
b. HIV/STD transmission | 12 | 53.5 (26.6) | 33.9 (21.9) | 0.81 | .0004 |
c. Condom counseling | 5 | 43.9 (26.2) | 48.6 (16.9) | −0.21 | .33 |
d. HIV testing counseling | 7 | 81.2 (19.3) | 75.3 (25.7) | 0.26 | .26 |
Nonsexual history/HIV items* (general information, etc.) | 38 | 62.0 (13.7) | 65.0 (19.8) | −0.18 | .32 |
Interpersonal skills* | 2 | 83.3 (15.6) | 72.4 (12.9) | 0.76 | .0008 |
Least square means are predicted mean scores on standardized patient (SP) checklist items, as predicted by the regression equation, adjusted for other variables in the model (prior academic achievement [USMLE 1], student gender, rotation group number).
STD, sexually transmitted disease; GPA, grade point average; USMLE, United States Medical Licensing Examination.