Table 8.
Mean scores and standard deviations obtained in pretest and final test (14–16 weeks) for four groups of practitioners: all those exposed to a radiology workshop (IG1, IG2, and IG3) and control group (CG)
| Groupsa | Pretest Mean (SD) | Final test Mean (SD) | Change Mean (SD) | 95% CI | p Value |
|---|---|---|---|---|---|
| IG 1 (n = 20) | 5.200 (1.28) | 4.900 (1.55) | 0.300 (1.45) | −0.34 to 0.94 | |
| Percent change | −5.8% | ||||
| IG 2 (n = 14) | 4.857 (0.95) | 5.500 (1.56) | 0.643 (1.55) | −0.17 to 1.45 | p = .348 |
| Percent change | +13.2% | F = 1.117 | |||
| IG 3 (n = 17) | 4.588 (1.46) | 4.647 (1.37) | 0.059 (1.71) | −0.75 to 0.87 | |
| Percent change | +1.3% | ||||
| CG (n = 24) | 4.542 (1.07) | 4.791 (1.38) | 0.25 (0.89) | −0.11 to 0.61 | |
| Percent change | 5.5% |
a
Includes respondents who completed both pretest and final test. IG, intervention groups (IG1, subgroup unexposed to reminder but undergoing a posttest at midpoint; IG2. subgroup exposed to reminder and undergoing a posttest at midpoint; IG3, subgroup unexposed to reminder and receiving no posttest); CG, control group; n, number of participants completing the competency tests; SD, standard deviation. A higher score at the final test indicates performance improved over time.