Table 3.

Summary of parameter estimates and item fit statistics of the Rating Scale Model: ABCD—risk scale.

Item	Mean	Severity (SE)	Outfit	Infit	τi.Cat1	τi .Cat2	τi .Cat3
Risk perception
1	1.20	1.12 (0.09)	1.04	1.06	− 2.65	1.14	4.88
2	1.13	1.42 (0.09)	0.86	1.88	− 2.36	1.44	5.18
3	1.22	1.06 (0.09)	1.14	1.16	− 2.72	1.07	4.82
4	0.97	2.05 (0.09)	0.79	0.79	− 1.72	2.07	5.81
5	0.95	2.15 (0.09)	0.89	0.90	− 1.63	2.16	5.91
6	1.13	1.42 (0.09)	1.11	1.09	− 2.36	1.43	5.18
7	1.04	1.78 (0.09)	0.91	0.92	− 2.00	1.79	5.54
Perceived benefit and intention to change of PA
8	2.11	− 2.03 (0.09)	1.28	1.13	− 5.10	− 2.31	1.31
9	2.08	− 1.92 (0.09)	0.90	0.92	− 4.98	− 2.20	1.43
10	1.87	− 1.13 (0.09)	0.62	0.66	− 4.20	− 1.41	2.21
11	1.89	− 1.20 (0.09)	0.59	0.63	− 4.27	− 1.49	2.14
12	1.69	− 0.49 (0.08)	1.24	1.24	− 3.56	− 0.77	2.85
13	1.91	− 1.26 (0.09)	0.99	1.01	− 4.32	− 1.54	2.09
Perceived benefit and intention to change of dietary habit
14	1.92	− 1.55 (0.09)	1.16	1.12	− 5.21	− 1.65	2.21
15	1.80	− 1.06 (0.09)	0.82	0.83	− 4.72	− 1.17	2.69
16	1.68	− 0.58 (0.09)	0.52	0.54	− 4.24	− 0.69	3.17
17	1.72	− 0.74 (0.09)	0.60	0.62	− 4.39	− 0.84	3.02
18	1.60	− 0.28 (0.09)	0.87	0.88	− 3.93	− 0.38	3.48
19	1.65	− 0.46 (0.09)	1.36	1.36	− 4.11	− 0.56	3.30
20	1.74	− 0.82 (0.09)	1.08	1.10	− 4.48	− 0.92	2.94

τi = Threshold of respective categories.