Table 3 GRM item parameters estimations
Slope | Threshold | ||||
|---|---|---|---|---|---|
Item | a i (SE) | bi1(SE) | bi2(SE) | bi3(SE) | bi4(SE) |
POP1 | 1.43 (0.09) | -4.31 (0.35) | -2.18 (0.32) | -0.88 (0.03) | 1.07 (0.03) |
POP2 | 1.51 (0.10) | -2.27 (0.013) | -0.38 (0.09) | 0.70 (0.10) | 2.19 (1.03) |
POP3 | 0.78 (0.07) | -6.08 (0.60) | -2.83 (0.42) | -0.98 (0.34) | 2.11 (0.41) |
POP4 | 1.60 (0.10) | -2.56 (0.14) | -0.87 (0.13) | 0.39 (0.09) | 1.73 (0.53) |
POP5 | 1.53 (0.11) | -3.94 (0.30) | -2.00 (0.28) | -1.09 (0.25) | 0.58 (0.23) |
POP6 | 1.08 (0.08) | -3.87 (0.29) | -1.28 (0.19) | 0.20 (0.16) | 2.64 (0.73) |