Table 4 Bias on the variance of the δ j parameters as a function of the rate of missing data per item (π), the value of the correlation coefficient ρ between the latent variable Θ and the propensity to have missing data ξ for each method for handling missing data (results for w = 0/w = 1)
π= 10% | π= 20% | π= 30% | |||||||
|---|---|---|---|---|---|---|---|---|---|
Method | ρ= 0.0 | ρ= -0.4 | ρ= -0.9 | ρ= 0.0 | ρ= -0.4 | ρ= -0.9 | ρ= 0.0 | ρ= -0.4 | ρ= -0.9 |
PMS | -0.05/-0.07 | -0.05/-0.07 | -0.06/-0.08 | -0.09/-0.10 | -0.09/-0.10 | -0.09/-0.11 | -0.10/-0.12 | -0.10/-0.11 | -0.09/-0.09 |
PMS-R | -0.08/-0.08 | -0.08/-0.08 | -0.08/-0.08 | -0.13/-0.13 | -0.13/-0.13 | -0.13/-0.13 | -0.16/-0.15 | -0.15/-0.14 | -0.15/-0.13 |
IMS | 0.20/0.21 | 0.20/0.21 | 0.20/0.20 | 0.37/0.41 | 0.38/0.39 | 0.40/0.39 | 0.47/0.56 | 0.49/0.53 | 0.55/0.54 |
IMS-R | -0.03/-0.03 | -0.03/-0.03 | -0.03/-0.03 | -0.05/-0.05 | -0.05/-0.05 | -0.04/-0.05 | -0.06/-0.07 | -0.06/-0.07 | -0.03/-0.06 |
CIM | 0.10/0.13 | 0.10/0.13 | 0.09/0.12 | 0.20/0.27 | 0.20/0.25 | 0.18/0.23 | 0.28/0.39 | 0.26/0.36 | 0.24/0.31 |
CIM-R | 0.03/-0.03 | 0.02/-0.03 | 0.02/-0.02 | 0.05/0.06 | 0.05/0.05 | 0.03/0.03 | 0.07/0.07 | 0.06/0.06 | 0.06/0.04 |
ICS | -0.06/-0.06 | -0.06/-0.06 | -0.06/-0.06 | -0.10/-0.09 | -0.09/-0.09 | -0.10/-0.09 | -0.11/-0.11 | -0.11/-0.10 | -0.11/-0.10 |
LOG | 0.16/0.16 | 0.16/0.16 | 0.16/0.15 | 0.28/0.31 | 0.29/0.29 | 0.30/0.28 | 0.38/0.43 | 0.40/0.40 | 0.44/0.37 |
LOG-R | -0.00/-0.00 | -0.00/-0.00 | -0.00/-0.00 | -0.02/-0.01 | -0.01/-0.02 | -0.01/-0.02 | -0.03/-0.03 | -0.02/-0.03 | 0.00/-0.03 |
MOK | 0.16/0.16 | 0.16/0.16 | 0.16/0.16 | 0.30/0.32 | 0.31/0.31 | 0.31/0.30 | 0.40/0.43 | 0.41/0.42 | 0.43/0.40 |
RAS | -0.22/-0.21 | -0.23/-0.22 | -0.22/-0.21 | -0.34/-0.31 | -0.34/-0.31 | -0.34/-0.30 | -0.39/-0.33 | -0.39/-0.32 | -0.40/-0.30 |
RAS-R | -0.18/-0.18 | -0.18/-0.17 | -0.18/-0.17 | -0.28/-0.26 | -0.28/-0.26 | -0.28/-0.25 | -0.33/-0.30 | -0.32/-0.29 | -0.32/-0.27 |
RAI | -0.22/-0.21 | -0.22/-0.21 | -0.22/-0.22 | -0.19/-0.23 | -0.19/-0.22 | -0.20/-0.22 | -0.19/-0.21 | -0.19/-0.21 | -0.20/-0.19 |
WORST | -0.01/0.08 | -0.01/0.07 | -0.01/0.08 | 0.11/0.26 | 0.09/0.25 | 0.06/0.22 | 0.20/0.43 | 0.13/0.37 | 0.06/0.30 |
NOIMP | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.01/0.01 | 0.01/0.00 | 0.01/0.00 | 0.01/0.00 | 0.03/0.00 |
LD | 0.00/0.00 | 0.02/0.02 | 0.09/0.08 | 0.00/0.00 | 0.09/0.08 | 0.42/0.37 | 0.01/0.02 | 0.21/0.19 | 0.98/0.92 |
FC | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.00/-0.00 |