TABLE 5.

Absolute bias and root mean squared difference for WLE, TWLE, and IWLE at 3 different levels of growth on 15d+15p.

15d+15p	Methods
N = 1000	IWLE		WLE		TWLE
θ2	Abs.Bias	RMSD	Abs.Bias	RMSD	Abs.Bias	RMSD
1	0.3555	0.5993	0.7385	3.0097	0.7626	3.0257
1	0.0864	0.9536	0.1136	1.3520	0.1371	1.4041
1	0.0877	0.7725	0.1020	1.0090	0.1020	1.0338
1	0.0030	0.5857	0.0053	0.6040	0.0049	0.6358
0.8	0.0013	0.5067	0.0063	0.5133	0.0025	0.5528
0.8	0.0103	0.4933	0.0030	0.4738	0.0132	0.5085
0.8	0.0022	0.4669	0.0070	0.4513	0.0029	0.4735
0.8	0.0162	0.4728	0.0123	0.4462	0.0178	0.4820
0.8	0.0087	0.4572	0.0003	0.4324	0.0096	0.4603
0.8	0.0161	0.4787	0.0129	0.4531	0.0164	0.4796
0.8	0.0177	0.4941	0.0178	0.4640	0.0151	0.4906
0.8	0.0407	0.5626	0.0328	0.5328	0.0490	0.5632
0.8	0.0473	0.5864	0.0487	0.5805	0.0476	0.6206
0.6	0.0617	0.8184	0.0618	0.9583	0.0629	0.9855
0.6	0.1824	1.3755	0.3231	2.3313	0.3333	2.3686
0.6	0.3534	2.0572	0.8409	4.0178	0.8563	4.0486
0.6	0.5312	2.8113	1.4114	6.0129	1.4160	6.0353

15d + 15p means the 30-item test with 15 dichotomous items and 15 polytomous items.