Abstract
Recent research suggests that rational choice and social influence theories provide complementary explanations for individual selection and use of communication media in organizations. Focusing specifically on e-mail selection and use, our study builds on this research by investigating the determinative role of individual differences. We find that individual differences influence e-mail use directly, as well as influence the relation between other predictor variables and e-mail use. Specifically, favorable attitudes toward innovation and change, computer self-effi cacy, and computer experience directly and positively influence e-mail use, and in addition, attitudes toward innovation and change influence (moderate) the rela tionship between social context and e-mail selection and use. These findings point to the need for a more comprehensive and complex model of the process determin ing the selection and use of e-mail.
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