Table 1.

Estimated slope (a), intercept (d) and pseudo‐guessing (c) item parameters using MML and MAP estimation

Item number	a (MML)	a (MAP)	d (MML)	d (MAP)	c (MML)	c (MAP)
1	3.797	3.778	−3.323	−3.249	0.423	0.421
2	1.479	1.463	1.111	1.120	0.000	0.000
3	1.532	1.529	1.411	1.423	0.000	0.000
4	1.859	1.855	−0.712	−0.689	0.183	0.181
5	1.244	1.240	1.054	1.063	0.000	0.000
6	1.501	1.492	0.785	0.796	0.000	0.000
7	23.191	6.389	−27.543	−7.708	0.106	0.099
8	2.126	2.123	0.851	0.868	0.000	0.000
9	27.480	6.150	−21.096	−4.627	0.285	0.272
10	2.381	2.507	−1.334	−1.407	0.138	0.145
11	2.293	2.258	1.960	1.965	0.000	0.000
12	1.793	1.790	0.756	0.770	0.000	0.000
13	1.271	1.353	−0.990	−1.067	0.151	0.164