1. Department of Psychology; University of Chester; Parkgate Road; Chester; CH1 4BJ; UK
2. Department of Psychology; School of Applied Sciences; University of Wolverhampton; Wulfruna Street; Wolverhampton; WV1 1LY; UK
3. School of Psychology; Bangor University; Brigantia Building, Penrallt Road; Bangor; LL57 2AS; UK
4. Department of Primary Care and Public Health; North Wales Clinical School; Cardiff University; Gwenfro Building, Wrexham Technology Park, Croesnewydd Road; Wrexham; LL13 7YP; UK