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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).