Table 6

Item parameters of the 2PL graded response model of the new trust in physician scale

S No	Item	A	b1	b2	b3	b4	S-X2	p Value
1	Does lab tests for diagnosis	1.75	−2.05	−1.50	−1.01	−0.48	159.46	0.005
2	Appropriate medicines	2.54	−2.06	−1.50	−1.17	−0.68	93.67	0.140
3	Appropriate number of medicines	2.45	−1.90	−1.55	−0.96	−0.51	141.34	0.001
4	Expensive meds for serious illness	1.22	−2.17	−1.65	−0.76	0.01	222.19	0.001
5	Relieves illness quickly	3.02	−1.83	−1.41	−1.09	−0.51	90.28	0.273
6	One visit is enough	2.14	−1.81	−1.44	−0.87	−0.25	126.80	0.231
7	No side effects of medicines	2.09	−1.72	−1.35	−0.86	−0.35	142.27	0.049
8	Community speaks well about doctor	2.18	−1.82	−1.48	−0.87	−0.28	150.46	0.003
9	Community recommends the doctor	2.46	−1.66	−1.38	−0.93	−0.32	122.57	0.047
10	Confidence	2.55	−1.85	−1.48	−0.94	−0.29	120.27	0.081
11	Big crowd in the clinic	1.81	−2.28	−1.76	−1.05	−0.52	224.29	0.001
12	Assured of good treatment	3.43	−1.80	−1.32	−1.00	−0.59	102.69	0.037
13	Good treatment irrespective of pay	1.24	−1.85	−1.40	−0.71	−0.15	219.84	0.001
14	Main intention is to treat my illness	2.6	−1.64	−1.27	−0.85	−0.35	137.47	0.025
15	Assured of treatment at any time	1.45	−1.58	−1.11	−0.57	0.05	229.94	0.001
16	Whatever the illness will go only to him	2.15	−1.33	−0.97	−0.53	−0.15	175.80	0.002
17	Will take other doctor’s prescription only with permission of this doctor	1.36	−1.18	−0.89	−0.23	0.27	222.35	0.001
18	Will bring family members to this doctor	2.39	−1.46	−1.20	−0.69	−0.26	123.10	0.222
19	Will recommend this doctors to others	3.12	−1.35	−1.10	−0.69	−0.25	118.13	0.117
20	Respect	4.00	−1.58	−1.30	−0.93	−0.49	72.37	0.466
21	Learned person	2.97	−1.62	−1.35	−0.90	−0.40	125.76	0.011
22	Admiration	2.14	−1.31	−1.09	−0.57	−0.06	141.81	0.095

a—discrimination parameter, b1, b2, b3, b4—difficulty parameter, S-X² Item level diagnostic statistic.