The purpose of this study was to systematically develop an instrument to measure computer aversion, computer attitudes, and computer familiarity. The study is an extension of previous research (Schulenberg, 2002). Development involved item generation, pilot testing, and exploratory and confirmatory factor analyses. The measure was administered to psychology students drawn from two universities (N = 854; N = 400, respectively). The three hypothesized factors emerged, as well as an additional computer aversion factor. The measure possesses good content validity and factorial validity, as well as solid internal consistency reliability. Implications of this study, considerations, and directions for future research are discussed. (Contains 5 tables.)