Psychoendocrine Validation of a Short Measure for Assessment of Perceived Stress Management Skills in Different Non-Clinical Populations Running title: ISBF validation

*a,b Petra H. Wirtz, Ph.D., a Livia Thomas, M.S., c Gregor Domes, Ph.D., d Frank J. Penedo, Ph.D., b Ulrike Ehlert, Ph.D. & e Fridtjof W. Nussbeck, Ph.D. a Biological and Health Psychology, University of Bern, Switzerland b Department of Clinical Psychology and Psychotherapy, University of Zurich, Switzerland c Department of Psychology, University of Freiburg, Germany d Department of Psychology and Psychiatry & Behavioural Sciences, University of Miami, U.S.A. e Department of Clinical Psychology with focus on children/adolescents and families/couples, University of Zurich, Switzerland