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This commentary raises conceptual issues related to recent efforts to develop measures of subjective wellbeing (SWB). Specifically, Hills’ and Argyle’s (2002) article on the development of the 29-item Oxford Happiness Questionnaire (OHQ), and its predecessor, the 20-item Oxford Happiness Inventory (Argyle, Martin & Crossland, 1989). Instead of assessing the structure of subjective well-being (S...

Materials and methods: Three studies were conducted. Two weeks post nursery placement, pigs 17 to 23 days old were evaluated to determine WTA using the Swine Welfare Assurance Program behavioral protocol. Pigs were observed at 4:00 pm the day before injection and at 4:00 pm 24 hours later, 6 hours post injection. The difference between the two WTA scores is reported as a decrease in percent wil...