Computer systems cannot improve organizational performance if they aren't used. Unfortunately, resistance to end-user systems by managers and professionals is a widespread problem. To better predict, explain, and increase user acceptance, we need to better understand why people accept or reject computers. This research addresses the ability to predict peoples' computer acceptance from a measure of their intentions, and the ability to explain their intentions in terms of their attitudes, subjective norms, perceived usefulness, perceived ease of use, and related variables. In a longitudinal study of 107 users, intentions to use a specific system, measured after a one-hour introduction to the system, were correlated 0.35 with system use 14 weeks later. The intention-usage correlation was 0.63 at the end of this time period. Perceived usefulness strongly influenced peoples' intentions, explaining more than half of the variance in intentions at the end of 14 weeks. Perceived ease of use had a small but significant effect on intentions as well, although this effect subsided over time. Attitudes only partially mediated the effects of these beliefs on intentions. Subjective norms had no effect on intentions. These results suggest the possibility of simple but powerful models of the determinants of user acceptance, with practical value for evaluating systems and guiding managerial interventions aimed at reducing the problem of underutilized computer technology.

User Acceptance of Computer Technology: A Comparison of Two Theoretical Models

Evidence from past research and insights from an exploratory investigation are combined in a conceptual model that defines and relates price, perceived quality, and perceived value. Propositions ab...

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Consumer Perceptions of Price, Quality, and Value: A Means-End Model and Synthesis of Evidence:

The author presents a conceptual model of brand equity from the perspective of the individual consumer. Customer-based brand equity is defined as the differential effect of brand knowledge on consu...

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Conceptualizing, measuring, and managing customer-based brand equity

Publisher Summary
This chapter outlines the two basic routes to persuasion. One route is based on the thoughtful consideration of arguments central to the issue, whereas the other is based on the affective associations or simple inferences tied to peripheral cues in the persuasion context. This chapter discusses a wide variety of variables that proved instrumental in affecting the elaboration likelihood, and thus the route to persuasion. One of the basic postulates of the Elaboration Likelihood Model—that variables may affect persuasion by increasing or decreasing scrutiny of message arguments—has been highly useful in accounting for the effects of a seemingly diverse list of variables. The reviewers of the attitude change literature have been disappointed with the many conflicting effects observed, even for ostensibly simple variables. The Elaboration Likelihood Model (ELM) attempts to place these many conflicting results and theories under one conceptual umbrella by specifying the major processes underlying persuasion and indicating the way many of the traditionally studied variables and theories relate to these basic processes. The ELM may prove useful in providing a guiding set of postulates from which to interpret previous work and in suggesting new hypotheses to be explored in future research.

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The elaboration likelihood model of persuasion

This paper presents a theoretical model of situation awareness based on its role in dynamic human decision making in a variety of domains. Situation awareness is presented as a predominant concern in system operation, based on a descriptive view of decision making. The relationship between situation awareness and numerous individual and environmental factors is explored. Among these factors, attention and working memory are presented as critical factors limiting operators from acquiring and interpreting information from the environment to form situation awareness, and mental models and goal-directed behavior are hypothesized as important mechanisms for overcoming these limits. The impact of design features, workload, stress, system complexity, and automation on operator situation awareness is addressed, and a taxonomy of errors in situation awareness is introduced, based on the model presented. The model is used to generate design implications for enhancing operator situation awareness and future directio...

Toward a Theory of Situation Awareness in Dynamic Systems

A theoretical model and measurement system for perceived risk and its components is developed and empirically tested for nine product types Regression analysis is used to consider both additive an

https://faculty.fuqua.duke.edu/~jrb12/bio/Jim/7.pdf

Perceived Risk and Its Components: A Model and Empirical Test:

The authors gratefully acknowledge the invaluable assistance of Harish Sujan and Mita Sujan in conducting the research. This study was supported in part by a grant from the Marketing Study Center at UCLA. The patterns of causal reasoning used to explain corporate performance outcomes were analyzed using data from Letters to Shareholders in 181 annual reports published in 1972 and 1974. These data were used to analyze the nature of self-serving attributions, and other attributional phenomena, and the factors affecting the amount of causal reasoning. The typical self-serving pattern of attributions found in studies of individual performance was also found in this study of corporate performance. Neither a purely informational nor a purely motivational explanation was supported by these attributions. Unfavorable outcomes were attributed more to external, unstable, and uncontrollable causes than were favorable outcomes. Attributions were most prevalent when a corporation did worse than expected and chose to talk mostly about unfavorable outcomes. These findings contribute new insights to several theoretical issues and support the use of annual report data in analyzing organizational phenomena.

Attributions in the Board Room: Causal Reasoning in Corporate Annual Reports

https://apps.dtic.mil/sti/pdfs/ADA199587.pdf

A Componential Analysis of Cognitive Effort in Choice

The study finds that framing, i.e., priming different decision criteria, influences evaluation outcomes for both expert and novice consumers when the alternatives are noncomparable and influences evaluation outcomes for novices when the alternatives are comparable. The ready availability of a decision criterion, as opposed to the lack of one, also alters consumers' cognitive responses for noncomparable sets to make these responses appear more like cognitive responses typical of comparable sets. One fundamental distinction between sets of noncomparable and comparable alternatives may be the ready availability of decision criteria versus the need to construct them, rather than any inherent differences in category types.

Effects of Framing on Evaluation of Comparable and Noncomparable Alternatives by Expert and Novice Consumers

Consumers often make decisions about outcomes and events that occur over time. This research examines consumers' sensitivity to the prospective duration relevant to their decisions and the implications of such sensitivity for intertemporal trade-offs, especially the degree of present bias (i.e., hyperbolic discounting). The authors show that participants' subjective perceptions of prospective duration are not sufficiently sensitive to changes in objective duration and are nonlinear and concave in objective time, consistent with psychophysical principles. More important, this lack of sensitivity can explain hyperbolic discounting. The results replicate standard hyperbolic discounting effects with respect to objective time but show a relatively constant rate of discounting with respect to subjective time perceptions. The results are replicated between subjects (Experiment 1) and within subjects (Experiments 2), with multiple time horizons and multiple descriptors, and with different measurement ord...

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James R. Bettman

Papers

Perceived Risk and Its Components: A Model and Empirical Test:

Attributions in the Board Room: Causal Reasoning in Corporate Annual Reports

A Componential Analysis of Cognitive Effort in Choice

Effects of Framing on Evaluation of Comparable and Noncomparable Alternatives by Expert and Novice Consumers

Discounting time and time discounting: Subjective time perception and intertemporal preferences.