정윤혁 교수

Abstract The objective of this study is twofold. First, it aims to investigate the various values users achieve with smartphones, which is a form of user‐empowering information technology (IT). The other objective is to introduce a means‐end chain approach into IT‐user studies. An important attraction of smartphones is their personalized environment, which is mainly provided by varied applications. The user personalization ability implies that users achieve diverse benefits with smartphones; tha

Despite an exponentially increasing number of registered users, social virtual worlds have the problem of a high user attrition rate. It is thus meaningful to explore which factors influence users' continued use of social virtual worlds. The current study attempts to find these factors in unique characteristics (e.g., 3-dimentional environment, avatar interaction, and user empowerment) in the world, which can be sources for retaining users. Specifically, the study employs the sense of presence a

Recently, mass media and researchers have begun to be concerned about excessive dependence on smartphones. Their interest, however, has largely focused on description of the phenomenon (i.e. severity of the addiction, current status of the addiction) or the development of measurement scales to assess the addiction. In this study, we ask a fundamental question about smartphone addiction: what users’ common sense of dependence on smartphones is. More specifically, employing a core–periphery analys

This paper presents a methodology for socio-cognitive research based on the theory of social representations. Elements of the methodology include:1) data elicitation through free word association; 2) content analysis/coding to identify key concepts in the social representation; 3) analysis of the structure of the representation using analysis of similarity and core/periphery analysis; 4) correspondence analysis to place the concepts on a perceptual space; and 5) interpretation of the social repr

Smart speakers, which provide continuous real-time information and convenient services, increasingly permeate into users’ homes. On the other hand, the environments of the smart speaker also cause privacy issues for the users by always listening to users’ voices in their private homes. The privacy-prone environments of the smart speakers lead to the users’ coping behaviors against privacy threats not only by increasing the users’ privacy concerns but also by creating negative emotions. However,