Participants could see the title of the survey in their mail, before opening the survey. The participants get rewarded with a small value coupon when completing the survey, so I don’t expect a pro-animal welfare selection bias. There was a question about active involvement level on animal welfare issues. Half of the respondents indicated to are not involved with animal welfare at all, 4% indicated high involvement, meaning e.g. eating no meat. Others had involvements like occasionally signing animal welfare petition. These statistics seem to be right, representative to the Belgian population. The survey was short, so not much difference between completion times. No significant differences in welfare range estimates were observed between people with more or less involvement, men or women,… Only relevant (statistically significant) difference: people with less active involvement had smaller negative estimates of broiler chicken welfare. I expect this to be a fluke, but again this indicates that the survey does not really have a pro animal welfare bias. Could be some social desirability bias, although I expect this to be small in anonymous online surveys of members of a marketing research company panel.
Participants could see the title of the survey in their mail, before opening the survey. The participants get rewarded with a small value coupon when completing the survey, so I don’t expect a pro-animal welfare selection bias. There was a question about active involvement level on animal welfare issues. Half of the respondents indicated to are not involved with animal welfare at all, 4% indicated high involvement, meaning e.g. eating no meat. Others had involvements like occasionally signing animal welfare petition. These statistics seem to be right, representative to the Belgian population. The survey was short, so not much difference between completion times. No significant differences in welfare range estimates were observed between people with more or less involvement, men or women,… Only relevant (statistically significant) difference: people with less active involvement had smaller negative estimates of broiler chicken welfare. I expect this to be a fluke, but again this indicates that the survey does not really have a pro animal welfare bias. Could be some social desirability bias, although I expect this to be small in anonymous online surveys of members of a marketing research company panel.