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Language Testing in Asia

Table 6 G-study (rater)

From: The affectability of writing assessment scores: a G-theory analysis of rater, task, and scoring method contribution

Mixed

Self

Peer

Instructor

Source

SS

VC

%

SS

VC

%

SS

VC

%

SS

VC

%

S

23634.03

0.4632

75.148

18934.3

0.3616

71.857

11478.32

0.219236

81.665

16678.713

0.318563

73.05

T

1565.416

0.0306

4.977

1465.416

0.0279

5.5613

409.416

0.00782

2.912879

943.408

0.018019

4.13

M

1117.49

0.0219

3.553

1117.49

0.0213

4.240

98.952

0.00189

0.704016

1001.34

0.019126

4.38

ST

2017.153

0.0395

6.413

2017.153

0.0385

7.655

861.326

0.016451

6.128091

1509.669

0.028835

6.61

SM

994.642

0.0194

3.162

994.642

0.0189

3.7747

161.358

0.003082

1.148017

1087.752

0.020776

4.76

TM

2120.93

0.0415

6.743

1820.93

0.0347

6.9105

1046

0.019979

7.441994

1608.36

0.03072

7.04

Total

31449.66

 

100

26349.93

 

100

14055.37

 

100

22829.24

 

100

Coef_G relative

.82

  

.83

  

.86

  

.81

  

Coef_G absolute

.80

  

.82

  

.84

  

.80

  

Relative ErrV

.00365

  

.00321

  

.00345

  

.00341

  

Absolute ErrV

.00381

  

.00369

  

.00358

  

.00350

  

Relative SE

.0413

  

.0391

  

.04321

  

.04190

  

Absolute SE

.4329

  

.0399

  

.04563

  

.04368

  
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