The primary objective of this study is to present and test an integrated model of turnover intentions which addresses the unique nature of the information technology (IT) profession. It identifies a multidimensional set of human resources (HR) practices likely to increase retention among IT employees. It also considers organizational citizenship behaviors and two distinct types of organizational commitment as key antecedents of turnover intentions. A second goal is to explore the moderating effects of organizational commitment and citizenship behaviors on HR practices-turnover intention relationships. A questionnaire was developed and sent to the Québec members of the Canadian Information Processing Society. Data from 394 respondents were used to validate the measures and test the research model. Findings reveal that IT specialists are particularly sensitive to four types of HR policies and practices: distributive justice, competence development, empowerment, and recognition. Results also provide additional support for the generalizability of the two-component model of organizational commitment in the IT context. This study is the first to show that the effects of various HR practices on turnover intentions among IT specialists depend upon the nature of their commitment to the organization. Similarly, we found that citizenship behaviors not only mediate but also moderate HR practicesturnover intention relationships. Implications of these results for practice and research are discussed.