Thesis (M.A.) from the year 2006 in the subject Psychology - Work, Business, Organisation, grade: 72, Aston University, language: English, abstract: This study examines the relationship between organizational commitment and citizenship behaviours, counterproductive work behaviours and turnover intentions. It also investigates the mediation effect of exhaustion on these relationships. Data were obtained from 87 workers of a health care Charity Trust based in the UK. Hierarchical regression analysis indicated that organizational commitment was related to counterproductive work behaviours and turnover intentions but not to citizenship behaviours. Moreover, exhaustion partially mediated the organizational commitment and turnover intentions relationship. However it is discussed that this mediation is not critical as the effects of exhaustion are overshadow by those of commitment.