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Table 3 Between-group comparisons for each outcome measure

From: A randomised controlled trial of extended immersion in multi-method continuing simulation to prepare senior medical students for practice as junior doctors

Outcome measure name (see Table 1) Intervention group Control group Maximum possible score Differencein mean score (%) or time P value
Mean score or time (%) SD score or time n Mean score or time (%) SD score or time n
End of Year 3 week
MCQ3 13.1 (66%) 2.0 44 12.6 (63%) 1.9 36 20 0.5 (3%) NS
SCQ3 29.5 (59%) 3.7 44 29.0 (58%) 3.7 36 50 0.5 (1%) NS
PS3 75.4 (75%) 9.3 44 70.1 (70%) 11.2 36 100 5.3 (5%) 0.02
RS3 29.1 seconds 11.4 seconds 14 70.1 seconds 28.4 seconds 12 - 41 seconds <0.01*
Year 3 summative assessment
SDP3 202.2 (75%) 10.3 45 199.6 (74%) 12.0 39 269 2.6 (1%) NS
SOV3 484.7 (72%) 26.8 45 480.5 (72%) 24.5 39 672 4.2 (1%) NS
Immediately before Year 4 week (‘retention’ analysis)
MCQR 11.4 (57%) 2.0 43 10.8 (54%) 2.2 38 20 0.6 (3%) NS
SCQR 30.4 (61%) 3.1 43 30.0 (60%) 3.4 38 50 0.4 (1%) NS
PSR 77.9 (78%) 6.3 43 70.4 (70%) 10.7 38 100 7.5 (8%) <0.01*
RSR 35.8 seconds 12.7 seconds 10 46.0 seconds 14.1 seconds 10 - 10.2 seconds NS
End of Year 4 week
MCQ4 15.0 (60%) 2.5 43 13.3 (53%) 2.5 35 25 1.7 (7%) <0.01
SCQ4 18.5 (62%) 2.1 43 17.3 (58%) 2.5 35 30 1.2 (4%) 0.02
PS4 70.8 (71%) 7.1 43 62.7 (63%) 10.0 35 100 8.1 (8%) <0.01*
RS4 252.0 seconds 113.9 seconds 10 339.2 seconds 64.5 seconds 10 - 87.1 seconds 0.05
Year 4 summative assessment
SDP4 124.7 (61%) 16.5 44 127.1 (62%) 9.2 38 204.5 -2.4 (-1%) NS*
SOS4 115.2 (54%) 15.7 44 116.8 (55%) 9.9 38 211.5 -1.6 (-1%) NS*
SOV4 342.0 (66%) 24.4 44 340.8 (66%) 18.6 38 516.5 1.2 (0%) NS
  1. Notes: n = number of individuals or (for RS scores) number of teams (small numbers of participants failed to attend for some study assessments leading to individual ‘n’ values lower than the number of participants in the study at the time); SD = standard deviation; all P values calculated with (independent group) t-tests except those marked *, where t-tests with Welch’s correction were used due to significantly different standard deviations between study groups; † = positive value for difference indicates Intervention group superior, negative value indicates Control group superior; scores and times rounded to one decimal place, P values rounded to two decimal places, percentages rounded to nearest whole percent.