Table 3. Evaluation of the two reference housing systems in splits 1 and 2.

	‘Free-range’ (Split 1) (n = 520)	‘Indoor’ (Split 2) (n = 518)
I consider this housing system to be acceptable.	6.31 (0.99)	2.11 (1.31)
I am happy when pigs are kept this way in agriculture.	6.28 (1.04)	1.93 (1.32)
This housing system corresponds to my ideal concept of pig husbandry.	6.08 (1.17)	1.76 (1.21)
This is the way all pigs in agriculture should be kept.	5.91 (1.19)	1.91 (1.29)
It is not feasible to keep all pigs in agriculture this way.	4.11 (1.76)	3.30 (1.70)
I think this is how most of the pigs in agriculture are kept.	2.10 (1.31)	4.71 (1.34)

Displayed are means and standard deviations in brackets.

Rating on a 7-point Likert scale from 1 = completely disagree, 4 = partly/partly, 7 = totally agree. Comparison of means between splits using t-test for independent samples: Differences were significant for all statements (p ≤ 0.001) but are not marked in the table.