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[Research]Understanding continued information technology usage behavior: A comparison of three models in the c
2006.12.01 Views 1031 경영학연구분석센터
Decision Support Systems
Volume 42, Issue 3, December 2006, Pages 1819–1834
SeJoon Hong (a), , , James Y.L. Thong (b), , Kar Yan Tam (b),
a Business School, Korea University, Seoul, South Korea
b Department of Information and Systems Management, School of Business and Management, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong http://dx.doi.org/10.1016/j.dss.2006.03.009
Abstract
This study examines the utility of three prospective models for understanding the continued IT usage behavior. The three models include: Expectation-Confirmation Model in IT Domain (ECM-IT), Technology Acceptance Model (TAM), and a hybrid model integrating TAM and ECM-IT (extended ECM-IT). Based on a survey of 1826 mobile Internet users, the LISREL analysis shows that all three models meet the various goodness-of-fit criteria. When compared using special indices for differentiating among alternative good models, TAM has the best fit to the data followed by ECM-IT, and the extended ECM-IT. In terms of variance explained for intention to continue IT usage, the extended ECM-IT has the highest R2 (67%) followed by TAM (63%), and ECM-IT (50%). We conclude that TAM is the most parsimonious and generic model that can be used to study both initial and continued IT adoption; the extended ECM-IT explains continued IT usage behavior as well as TAM; and both the ECM-IT and extended ECM-IT models provide additional information to increase our understanding of continued IT usage.
Keywords
Continued information technology usage;
Technology Acceptance Model;
Expectation-Confirmation Model;
Mobile Internet; Survey research
Volume 42, Issue 3, December 2006, Pages 1819–1834
SeJoon Hong (a), , , James Y.L. Thong (b), , Kar Yan Tam (b),
a Business School, Korea University, Seoul, South Korea
b Department of Information and Systems Management, School of Business and Management, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong http://dx.doi.org/10.1016/j.dss.2006.03.009
Abstract
This study examines the utility of three prospective models for understanding the continued IT usage behavior. The three models include: Expectation-Confirmation Model in IT Domain (ECM-IT), Technology Acceptance Model (TAM), and a hybrid model integrating TAM and ECM-IT (extended ECM-IT). Based on a survey of 1826 mobile Internet users, the LISREL analysis shows that all three models meet the various goodness-of-fit criteria. When compared using special indices for differentiating among alternative good models, TAM has the best fit to the data followed by ECM-IT, and the extended ECM-IT. In terms of variance explained for intention to continue IT usage, the extended ECM-IT has the highest R2 (67%) followed by TAM (63%), and ECM-IT (50%). We conclude that TAM is the most parsimonious and generic model that can be used to study both initial and continued IT adoption; the extended ECM-IT explains continued IT usage behavior as well as TAM; and both the ECM-IT and extended ECM-IT models provide additional information to increase our understanding of continued IT usage.
Keywords
Continued information technology usage;
Technology Acceptance Model;
Expectation-Confirmation Model;
Mobile Internet; Survey research