From: Using incentives to recruit physicians into behavioral trials: lessons learned from four studies
Variable | Overall (N = 674) | Study 1 development of vignette-based questionnaire (n = 168) | Study 2 validation of vignette-based questionnaire | Study 3 development and validation of a virtual simulation (n = 142) | Study 4 testing the efficacy of a video game to reduce diagnostic error among physicians (n = 295) | ||
---|---|---|---|---|---|---|---|
a Retest reliability (n = 32) | b Known groups (n = 28) | c External validity (n = 28) | |||||
Age, mean (SD) | 41 (9.5) | 42 (9.6) | 43 (8.7) | 44 (6.9) | 47 (8.8) | 43 (10.7) | 40 (8.9) |
Male, n (%) | 511 (76) | 141 (84) | 26 (81) | 21 (75) | 19 (68) | 112 (79) | 192 (65) |
Race, n (%) | |||||||
 White | 503 (75) | 127 (76) | 27 (84) | 20 (71) | 23 (82) | 105 (74) | 201 (68) |
 Black | 21 (3) | 8 (5) | 0 (0) | 0 (0) |  | 3 (2) | 10 (3) |
 Asian | 95 (14) | 20 (12) | 4 (13) | 3 (11) | 5 (19) | 18 (13) | 50 (17) |
 Latino | 38 (6) | 9 (5) | 0 (0) | 0 (0) |  | 6 (4) | 23 (8) |
 Native American or Pacific Islander | 10 (1) | 3 (2) | 0 (0) | 0 (0) |  | 2 (1) | 5 (2) |
 Other | 21 (3) | 1 (1) | 1 (3) | 2 (7) |  | 8 (6) | 8 (3) |
Primary specialty | |||||||
 Emergency Medicine | 625 (93) | 157 (93) | 30 (94) | – | 20 (71) | 135 (95) | 283 (96) |
 Family Practice/Internal Medicine | 36 (5) | 10 (5) | 1 (3) | – | 8 (29) | 7 (5) | 10 (4) |
 Trauma Surgery | 28 (4) | – | – | 28 (100) | – | – | – |
 Other | 5 (1) | 1 (1) | 1 (3) | – | – | – | 3 (1) |
Years experience, mean (SD) | 10.1 (9.2) | 11.8 (9.2) | 12 (8.9) | 11.3 (7) | 16 (9.8) | 11.1 (10.6) | 8.4 (8.5) |
ATLS certified, n (%) | 512 (76) | 125 (74) | 20 (63) | 28 (100) | 19 (68) | 113 (80) | 207 (70) |
Physician also works at a Level I/II trauma center, n (%) | 112 (17) | 14 (8) | 6 (18) | 28 (100) | 0 (0) | 28 (20) | 36 (12) |