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Interactivity is an often mentioned but seldom operationalized concept associated with the World Wide Web. Interactivity has been positioned conceptually as a process, a function, and a perception, but most operational definitions have focused on the process or function. This study develops scales to operationalize the perception-based approach to interactivity, because consumer perceptions are central to advertising research. Three overlapping constructs that are central to interactivity are explored: direction of communication, user control, and time. A multistage method is used to identify and refine measures of perceived interactivity (MPI). The 18 items included in the MPI offer researchers a tool for measuring a consumer perception central to advertising on the Web. [ABSTRACT FROM AUTHOR]

Existing communication models and definitions of interactivity provide both background and structure for a new model of cyber-interactivity that is introduced and explored in this article. Two primary dimensions, direction of communication and level of receiver control over the communication process, provide the primary framework for this new model of computer-mediated cyber-interactivity. A study designed to explore the applicability of this model analyzed 108 health-related websites using both perception-based and feature-based measures of these two dimensions. No significant correlation was found between the perception-based and feature-based models. The perception-based model was a better predictor of attitude toward the website and perceived relevance of the subject of the website than the feature-based model. However, the feature-based model may hold greater promise as a tool for website developers who seek to incorporate appropriate levels of interactivity in their websites. [ABSTRACT FROM AUTHOR]

The literature on interactivity includes many assumptions and some definitions but few tools for operationalizing the concept of interactivity in computer-mediated environments. This article takes an early step in filling that gap. In-depth interviews with 10 individuals who work and teach in the field of interactive communication led to a conceptual definition of interactivity based on six dimensions: direction of communication, time flexibility, sense of place, level of control, responsiveness, and perceived purpose of communication. Suggestions are made for applying these dimensions to multiple forms of computer-mediated communication. Future research should empirically test the existence and application of these dimensions. [ABSTRACT FROM AUTHOR]