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Table 5 Logistic regression for predictors of sitting the UMAT two or more times (N = 17,089) vs once only (N = 110,295) (Nagelkerke R Square 0.066)

From: Practice effects in medical school entrance testing with the undergraduate medicine and health sciences admission test (UMAT)

Predictor variable( reference group in brackets) N B S.E. Sig. Exp (B) 95% CI for exp (B)
Lower Upper
UMAT - 1 Quartiles ( 4 ) 31971       
  UMAT-1 Quartile 1 31853 0.739 0.031 <0.001 2.09 1.97 2.23
  UMAT-1 Quartile 2 32108 0.712 0.028 <0.001 2.04 1.93 2.15
  UMAT-1 Quartile 3 31452 0.599 0.026 <0.001 1.82 1.73 1.92
UMAT - 2 Quartiles ( 4 ) 32340       
  UMAT-2 Quartile 1 31685 0.215 0.028 <0.001 1.24 1.17 1.31
  UMAT-2 Quartile 2 31705 0.250 0.026 <0.001 1.28 1.22 1.35
  UMAT-2 Quartile 3 31654 0.231 0.026 <0.001 1.26 1.12 1.32
UMAT - 3 Quartiles ( 4 ) 32939       
  UMAT-3 Quartile 1 31346 -0.503 0.027 <0.001 0.61 0.57 0.64
  UMAT-3 Quartile 2 32166 -0.230 0.025 <0.001 0.79 0.76 0.83
  UMAT-3 Quartile 3 30933 0-.021 0.024 .374 0.98 0.94 1.03
Age (≤ 16 yr of age) 1386       
  17 yr 45316 -0.249 0.076 0.001 0.78 0.67 0.91
  18 yr 55630 -0.400 0.076 <0.001 0.67 0.58 0.78
  19 yr 10787 -0.814 0.081 <0.001 0.44 0.38 0.52
  20 - 30 yr 12203 -0.484 0.080 <0.001 0.62 0.53 0.72
  > 30 yr 2062 -0.300 0.101 <0.001 0.74 0.61 0.90
Gender (Females) 73536       
  Males 53848 0.096 0.018 <0.001 1.10 1.06 1.14
Language spoken at home (English) 88134       
  Asian Languages 34461 0.164 0.020 <0.001 1.18 1.13 1.23
  European Languages 2581 0.116 0.060 0.05 1.12 1.00 1.26
  Other Languages 2208 0.400 0.058 <0.001 1.49 1.33 1.67
School type (Government) 59827       
  Catholic 22407 -0.097 0.025 <0.001 0.91 0.86 0.95
  Independent 41812 0.004 0.020 0.829 1.00 0.97 1.05
  Other 2842 -0.046 0.056 0.411 0.96 0.86 1.07
  TAFE 496 0.510 0.123 <0.001 1.67 1.31 2.12
Country (Australia) 109880       
  New Zealand 16267 1.279 0.024 <0.001 3.59 3.43 3.76
  Other Country 1237 0.128 0.094 0.174 1.14 0.95 1.37
Aboriginal & Torres Strait Islander (ATSI) 126808       
  Non-ATSI 576 0.450 0.157 <0.001 1.57 1.15 2.13
  1. (Significant P-values are boldfaced).