[1] Abertay Univ, Div Hlth Sci, Dundee, Scotland
[2] Univ West England, Dept Psychol, Bristol, Avon, England
[3] Roehampton Univ, Dept Psychol, London, England
[4] York St John Univ, Fac Hlth & Life Sci, York, N Yorkshire, England
[5] Univ Salford, Sch Nursing Midwifery & Social Work, Manchester, Lancs, England
[6] Univ Salford, Salford, Lancs, England