Magid Igbaria

Personal computing acceptance factors in small firms: a structural equation model

This study draws upon the technology acceptance model as the theoretical basis and empirical findings for a pragmatic explanation of key factors affecting personal computing acceptance in small firms. The study uses results from a survey of 358 users in small firms in New Zealand to test a structural model examining the hypothesized relationships among the following constructs: intraorganizational factors, extraorganizational factors, perceived ease of use, perceived usefulness, and personal computing acceptance (i.e., system usage). The findings indicate that perceived ease of use is a dominant factor in explaining perceived usefulness and system usage, and that perceived usefulness has a strong effect on system usage. The results also indicate that exogenous variables influence both perceived ease of use and perceived usefulness, particularly management support and external support. Inconsistent with prior research in large firms, relatively little support was found for the influence of both internal support and internal training. Implications for the acceptance of personal computing and future research on personal computing acceptance in small firms are discussed.

Testing the determinants of microcomputer usage via a structural equation model

The objective of this study was to develop and test an integrated conceptual model of microcomputer usage. This study used the technology acceptance model and sought to extend it by investigating the impact of the external factors (i.e., individual, organizational, and system characteristics) on the user acceptance of microcomputer technology. The paper reports the results of a field study investigating the determinants of microcomputer usage. The analyses of the measurement model confirm the existence of two distinct constructs of (1) beliefs-perceived usefulness and perceived ease of use; (2) organizational support-management support and end-user computing (EUC) support; and (3) microcomputer usage-perceived usage and variety of use. The tested conceptual model confirms the effects of individual, organizational, and system characteristics on perceived ease of use and perceived usefulness. The model also confirms the influence of perceived ease of use on perceived usefulness, and the effects of perceived usefulness on perceived usage and variety of use. Results confirm several previously proposed notions, including the effects of individual, organizational, and system characteristics on ease of use and usefulness; the influence of ease of use on usefulness, and the effects of perceived usefulness on usage and variety of use. The results demonstrate the utility of investigating factors contributing to microcomputer usage and the external factors affecting endogenous variables such as system usefulness. The importance of EUC support and management support is corroborated, as well as the need for designing mechanisms such as training programs and newsletters to improve user perceptions of microcomputers.

The effects of self-efficacy on computer usage

This paper examines the effect of self-efficacy, belief in ones capabilities of using a computer in the accomplishment of specific tasks, on computer usage. It introduces an extended technology acceptance model (TAM) that explicitly incorporates self-efficacy and its determinants (experience and organizational support) as factors affecting computer anxiety, perceived ease of use, perceived usefulness and the use of computer technology. A survey of 450 microcomputer users in Finland found strong support for the conceptual model. In accordance with TAM, perceived usefulness had a strong direct effect on usage, while perceived ease of use had indirect effect on usage through perceived usefulness. Self-efficacy had both direct and indirect effects on usage, demonstrating its importance in the decision to use computer technology. It also had a strong direct effect on perceived ease of use, but only an indirect effect on perceived usefulness through perceived ease of use. Computer experience was found to have a strong positive direct effect on self-efficacy, perceived ease of use, perceived usefulness and usage. Organizational support and computer anxiety had only indirect effects on usage, mainly through perceived usefulness. Implications of these findings are discussed for researchers and practitioners.

A motivational model of microcomputer usage

Survey data gathered from 471 professionals and managers in 62 companies in North America were used to test a motivational model of microcomputer usage. The model synthesized prior research findings and proposed that perceived usefulness, perceived fun/enjoyment, and social pressure would motivate increased use of microcomputers by professionals and managers. Results provided substantial support for the proposition that perceived usefulness (rather than perceived fun or social pressure) is the principal motivator. The findings also demonstrated that perceived complexity is a key intervening variable linking the antecedent variables (skills, organizational support, and organizational usage) with the three motivational variables. The results also suggested that skills play a critical role in affecting microcomputer usage. Skills directly promote microcomputer usage and influence usage through their effects on perceived usefulness, perceived enjoyment, and social pressure. The findings of the study contribute to an expanded understanding of the factors that promote microcomputer usage and also have important implications for the management of information systems.

The consequences of information technology acceptance on subsequent individual performance

Abstract As more information technology (IT) is deployed in organizations, it is important to understand its impact on individual performance and organizational productivity. Most past research has concentrated on identifying determinants of computer acceptance. This may be inadequate in determining the value and return on investment due to IT. Organizations are able to deploy IT more effectively if the consequences of its acceptance are obviously valuable. This study seeks to investigate the implications and consequences of IT acceptance by examining the relationships between IT acceptance and its impact on the individual user. The research model involves three components: user satisfaction, system usage, and individual impact. It is hypothesized that user satisfaction and system usage affect individual impact and that usage partially mediates the effect of satisfaction on individual impact. A comprehensive questionnaire on computer acceptance was used to collect data from 625 employees of a large organization in Singapore. The results suggest that user satisfaction is an important factor affecting system usage and that user satisfaction has the strongest direct effect on individual impact. The results also demonstrate the importance of system usage in mediating the relationship of user satisfaction on individual impact.

Computer anxiety and attitudes towards microcomputer use

Abstract Survey data gathered from 187 participants were used to examine the relationship between demographic variables, computer training and experience, management support and system quality and computer anxiety, and attitudes toward microcomputers. Results of hierarchical multiple regression analysis showed that the quality of the computer-based information system which represents the interface and the interaction between the participants and the system has a strong positive effect on attitudes toward microcomputers, and a significant reduction on computer anxiety. Computer training contributes strongly to decrease in computer anxiety and has an indirect effect on attitudes toward microcomputers. However, computer experience and management support were found to affect the attitudes toward microcomputers directly. Among the demographic variables, gender was the only one which correlated highly with computer anxiety. Implications for the design of information and decision support systems and future resea...

User acceptance of microcomputer technology: An empirical test

The study tested the determinants of user acceptance of microcomputer technology among 519 managers. Results provided moderate support for the proposed model and the pattern of linkages specified among the study variables. Results showed that computer experience had strong direct and indirect effects on computer anxiety, perceived usefulness, attitudes toward using the system, behavioral intentions, and user acceptance. User training and information center (IC) support had strong negative effects on computer anxiety and positive effects on perceived usefulness, attitudes, behavioral intentions, and user acceptance of the microcomputer technology. Smaller but significant effects were also found for management support, age, education, and gender on most of the endogenous variables. Computer anxiety was found to have a strong negative effect on perceived usefulness and behavioral intentions, indirect effects on attitudes and user acceptance via perceived usefulness, and both direct and indirect effects on behavioral intentions. Perceived usefulness had positive effects on attitudes, behavioral intentions, and user acceptance, and attitudes had a moderate effect on behavioral intentions. Finally, behavioral intentions were found to be the determinants of user acceptance of microcomputer technology. Suggestions regarding areas for future research and implications are offered.

Quality and effectiveness in web-based customer support systems

The quality of a Web-based customer support system involves the information it supplies, the service it provides, and characteristics of the system itself; its effectiveness is reflected by the satisfaction of its users. This paper presents the results of a study of quality and effectiveness in Web-based customer support systems. Data from a survey of 726 Internet users were used to test theoretically expected relationships. The results of this study indicate that information and system quality determine effectiveness while service quality has no impact. Practical implications for managers and designers are offered.

Career orientations of MIS employees: an empirical analysis

The career orientations of employees can have important implications for their job satisfaction, commitment, and retention within organizations. However, there is little empirical research on the correlates of career orientations held by managers and professionals in the MIS field. This study sought to address this gap in the literature and assessed the career orientations of 464 MIS employees, as well as their relationship with selected demographic characteristics, job type, and career outcomes. The most prevalent career orientations of MIS employees were found to be technical and managerial. Autonomy and lifestyle orientations were also found to be moderately represented in the sample. Women were more lifestyle oriented and less technically oriented than men. In addition, systems programmers, applications programmers, and software engineers tended to be technically oriented, whereas systems analysts, project leaders, and computer managers tended to be managerially oriented. The most significant finding was that employees whose career orientations were compatible with their job setting reported high job satisfaction, high career satisfaction, strong commitment to their organization, and low intentions to leave their organization. Firms need to recognize the diversity of career orientations so that appropriate reward systems and career paths can be developed. Research on this topic should continue to examine characteristics unique to MIS employees, as well as how these interrelationships change over time at different career stages.

End-user computing effectiveness: A structural equation model

The paper reports the results of a field study investigating the determinants of End-User Computing (EUC) effectiveness among 187 end-users. A conceptual structural model was developed and tested using Partial Least Squares (PLS). The results show that computer anxiety and attitudes toward EUC are significantly affected by work/life experiences, end-user training, computer experience, and information center support. Computer anxiety also affected attitudes towards EUC. In addition, the number of tasks for which computers are used is directly affected by end-user training, computer experience, organizational support provided by information center and top management, task structure, and attitudes toward EUC. Furthermore, system usage, end-user satisfaction, and perceived effectiveness are strongly affected by end-user training, computer experience, top management support, information center support, task structure, task variety and attitudes towards EUC.