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Table 3 Comparison of mean marks per station per method

From: Enhancing the defensibility of examiners’ marks in high stake OSCEs

Station

Method

Mean

Std. deviation

Std. error mean

Mean diff

95% CI

Sig

Lower

Upper

Med.A

(P-)

7.22

1.01

0.062

0.07

0.02

0.12

0.004

(B)

7.15

1.18

0.073

Med.B

(P-)

7.14

1.06

0.066

0.04

0.00

0.09

0.073

(B)

7.10

1.23

0.076

Surg.A

(P-)

7.20

0.91

0.057

−0.01

−0.05

0.04

0.724

(B)

7.20

1.03

0.064

Surg.B

(P-)

7.24

0.88

0.055

0.01

−0.03

0.06

0.590

(B)

7.23

1.02

0.064

Psych

(P-)

7.21

1.06

0.066

0.08

0.04

0.13

0.000

(B)

7.13

1.24

0.077

O&G

(P-)

7.24

1.13

0.070

0.04

−0.01

0.08

0.085

(B)

7.20

1.30

0.081

P.Care

(P-)

6.98

1.13

0.070

0.01

−0.04

0.06

0.732

(B)

6.98

1.30

0.081

Paed

(P-)

7.38

0.91

0.057

0.06

0.01

0.10

0.009

(B)

7.32

1.08

0.067

E.Med

(P-)

7.32

1.01

0.063

0.03

−0.01

0.07

0.179

(B)

7.30

1.16

0.072

  1. N = 259
  2. (B) Marks calculated using OBM2
  3. (P-) Marks calculated using the ‘traditional method’