Table 4.

Estimated Item Indices for the Transitive Reasoning Data Set.

Item	Item-score reliability				Item indices
	Item M	Method MS	Method ${\lambda }_6$	Method CA	Item-rest correlation	Item-factor loading	Item scalability	Item discrimination
$X_1$	0.97	0.36	0.28	0.21	0.26	0.85	0.28	2.69
$X_2$	0.81	0.01	0.13	0.05	0.13	−0.04	0.08	−0.05
$X_3$	0.97	0.47	0.30	0.35	0.33	0.88	0.40	3.16
$X_4$	0.78	0.05	0.13	0.02	0.08	−0.10	0.05	−0.20
$X_5$	0.84	0.18	0.23	0.31	0.29	0.73	0.18	1.94
$X_6$	0.94	0.32	0.20	0.17	0.23	0.74	0.21	2.04
$X_7$	0.64	0.03	0.05	0.00	−0.04	−0.06	−0.03	−0.01
$X_8$	0.88	0.39	0.30	0.26	0.28	0.83	0.19	2.54
$X_9$	0.80	0.05	0.06	0.07	0.15	0.34	0.09	0.64
$X_{10}$	0.30	0.00	0.10	0.10	0.18	0.48	0.17	1.03
$X_{11}$	0.52	0.00	0.17	0.14	0.21	0.61	0.14	1.36
$X_{12}$	0.48	0.00	0.07	0.06	−0.17	−0.29	−0.14	−0.50

Note. Bold-faced values are above the heuristic rule for that item index. MS = Molenaar–Sijtsma method; CA = correction for attenuation.