Table 2: Item easiness parameters, their standard errors, and chi-square fit values for the three fiting scores.
| Item |
TN |
CTN |
CTN-C |
| –
|
Estimate |
SE |
Fit |
Estimate |
SE |
Fit |
Estimate |
SE |
Fit |
| 1 |
2.88 |
.02 |
14.03 |
2.87 |
.02 |
11.13 |
2.87 |
.02 |
8.84 |
| 2 |
2.67 |
.02 |
1.53 |
2.66 |
.02 |
3.51 |
2.66 |
.02 |
1.33 |
| 3 |
2.78 |
.02 |
5.21 |
2.75 |
.02 |
8.03 |
2.75 |
.02 |
4.37 |
| 4 |
2.62 |
.02 |
14.88 |
2.60 |
.02 |
13.24 |
2.60 |
.02 |
6.99 |
| 5 |
2.50 |
.02 |
6.46 |
2.48 |
.02 |
4.78 |
2.48 |
.02 |
2.13 |
| 6 |
2.76 |
.02 |
2.03 |
2.73 |
.02 |
2.76 |
2.73 |
.02 |
4.75 |
| 7 |
2.78 |
.02 |
1.14 |
2.75 |
.02 |
1.30 |
2.75 |
.02 |
0.70 |
| 8 |
2.80 |
.02 |
2.89 |
2.78 |
.02 |
2.65 |
2.78 |
.02 |
2.50 |
| 9 |
2.81 |
.02 |
5.11 |
2.78 |
.02 |
4.96 |
2.78 |
.02 |
3.19 |
| 10 |
2.76 |
.02 |
6.13 |
2.74 |
.02 |
4.87 |
2.74 |
.02 |
8.47 |
| 11 |
2.76 |
.02 |
8.00 |
2.73 |
.02 |
4.56 |
2.73 |
.02 |
2.39 |
| 12 |
2.67 |
.02 |
8.30 |
2.64 |
.02 |
7.97 |
2.64 |
.02 |
6.33 |
| 13 |
2.75 |
.02 |
2.36 |
2.71 |
.02 |
3.39 |
2.71 |
.02 |
2.84 |
| 14 |
2.80 |
.02 |
1.37 |
2.77 |
.02 |
1.00 |
2.77 |
.02 |
2.11 |
| 15 |
2.79 |
.02 |
2.66 |
2.75 |
.02 |
2.63 |
2.75 |
.02 |
2.65 |
| 16 |
2.76 |
.02 |
3.52 |
2.72 |
.02 |
4.14 |
2.72 |
.02 |
6.27 |
| 17 |
2.79 |
.02 |
0.73 |
2.75 |
.02 |
0.76 |
2.75 |
.02 |
1.29 |
| 18 |
2.76 |
.02 |
2.06 |
2.72 |
.02 |
3.42 |
2.72 |
.02 |
4.43 |
| 19 |
2.55 |
.02 |
5.77 |
2.50 |
.02 |
8.66 |
2.50 |
.02 |
8.25 |
| 20 |
2.80 |
.02 |
1.92 |
2.76 |
.02 |
3.36 |
2.76 |
.02 |
6.21 |