Table 8.

Discrimination and difficulty values of the items in the practice scale (sorted by decreasing discrimination).

	Items	Coef.	Std. Err.	95% Conf. Interval
Discrimination	P5_How do you manage manure?	4.53	0.58	3.379	5.685
	P9_Who administers the antibiotics?	4.48	0.58	3.334	5.685
	P1_Do you consume milk from animals who were just treated with antimicrobials?	3.51	0.51	2.492	4.52
	P2_Do you consume meat from animals who were just treated with antimicrobials?	3.18	0.49	2.196	4.154
	P3_How long do you use antibiotics in animals?	2.59	0.38	1.844	3.342
	P6_Do you have isolation pen for sick animals?	1.69	0.27	1.158	2.23
	P8_What do you do if an animal dies from disease?	1.67	0.92	−0.146	3.484
	P7_Do you allow animals on treatment to immediately freely graze with other animals without quarantine for few days?	0.59	0.12	0.344	0.853
Difficulty	P5_How do you manage manure?	−0.47	0.07	−0.611	−0.321
	P9_Who administers the antibiotics?	−0.45	0.07	−0.598	−0.308
	P1_Do you consume milk from animals who were just treated with antimicrobials?	−0.32	0.08	−0.478	−0.171
	P2_Do you consume meat from animals who were just treated with antimicrobials?	0.21	0.08	0.056	0.37
	P3_How long do you use antibiotics in animals?	−0.63	0.09	−0.814	−0.469
	P6_Do you have isolation pen for sick animals?	0.2	0.09	0.0153	0.396
	P8_What do you do if an animal dies from disease?	2.59	0.69	1.248	3,946
	P7_Do you allow animals on treatment to immediately freely graze with other animals without quarantine for few days?	−0.63	0.23	−1.092	−0.184