Cheng Yian Tan
Email Address
pvotcy@nus.edu.sg
Organizational Units
UNIV ADMIN
faculty
COMPUTING
faculty
76 results
Publication Search Results
Now showing 1 - 10 of 76
Publication Erratum: Who will you ask? An empirical study of interpersonal task information seeking (Journal of the American Society for Information Science and Technology (2006) 57:12 (1666-1677))(2007) Xu, Y.; Yang, L.; Tan, B.C.Y.; INFORMATION SYSTEMSPublication Emotional trust and cognitive distrust: From a cognitive-affective personality system theory perspective(2010) Lee, J.; Lee, J.-N.; Tan, B.C.Y.; INFORMATION SYSTEMSThe objective of this research is to identify the role of trust and distrust in online shopping mall business. To differentiate the status of distrust from low trust, cognitive-affective personality system theory was applied, through which five types of psychological units were proposed. The research model proposed seven hypotheses showing the processes through which the features of an online shopping mall - truthfulness and effectiveness of the website - affect trust, distrust levels, and behavior of individual customers. Assuming that trust and distrust are in psychologically different stages, the study further proposed that distrust, which emerges and diminishes rather cognitively, is the antecedent of trust. Then trust, which emerges and diminishes as an emotion-based variable, is posited as the antecedent of customer loyalty. To validate, a survey was conducted with 310 Korean online shopping mall users. Results show that six out of seven hypotheses are supported. From the result, we draw following discussions. First, trust and distrust are different in terms of their psychological status, and trust seems to be the more critical factor in the online business context. Second, both effectiveness and truthfulness are found to be important sources of customer loyalty. However, unlike our expectation, only effectiveness showed a direct association with customer loyalty while truthfulness had an indirect impact through trust.Publication Understanding online interruption-based advertising: Impacts of exposure timing, dvertising intent, and brand image(2010) Chan, J.C.F.; Jiang, Z.; Tan, B.C.Y.; INFORMATION SYSTEMSInterruption-based advertising has gained prominence in the online channel. Yet, little attention has been paid to deriving design principles and conceptualizations for online interruption-based advertising. This paper examines three novel design factors related to this phenomenon, namely, exposure timing, advertising intent, and brand image. Exposure timing pertains to the time by which the advertisement (ad) is launched within a website. Advertising intent refers to the explicitness of ad content in portraying the desire to induce purchase behavior. Brand image relates to consumers overall perceptions of the advertised brand. In a laboratory experiment, participants were exposed to pop-up ads that were operationalized based on these three design considerations. Results reveal three two-way interactions among the study constructs. Online interruption-based ads shown in the predecisional shopping phase are more effective when their contents are designed with implicit advertising intent compared to explicit intent. Brand image is found to moderate the effects of advertising intent on consumers purchase intention. Participants responses also show that ads promoting weak brands with less favorable image tend to enjoy higher purchase intention when shown in the predecisional phase compared with the postdecisional phase. Theoretical and practical implications together with suggestions for future research are discussed. © 2009 IEEE.Publication Supporting virtual team-building with a GSS: An empirical investigation(2002) Huang, W.W.; Wei, K.-K.; Watson, R.T.; Tan, B.C.Y.; INFORMATION SYSTEMSAs virtual teams become more and more common in organizations, supporting virtual teams will be an important research topic for group support systems (GSS) scholars. This research examines how a GSS may be used to support virtual team-building. The results reveal that a GSS with an embedded goal-setting structure helped virtual teams to foster better team cohesion, better team commitment, and better collaboration climate than a GSS without the goal-setting structure. Virtual teams using a GSS with an embedded goal-setting structure also had better perceived decision quality and generated more decision alternatives than virtual teams using a GSS without the goal-setting structure. Implications of these findings are discussed. © 2002 Elsevier Science B.V. All rights reserved.Publication Investigating training effects on software reviews: A controlled experiment(2005) Land, L.P.W.; Tan, B.C.Y.; Bin, L.; INFORMATION SYSTEMSThe software review/inspection task is a labour and time intensive activity. Naturally, any activity aimed at improving the performance of inspectors would be deemed favourable to both practitioners as well as to researchers. This study is motivated by previous work by Chowdhury and Land [4, 5], on the effects of inspector training on inspection performance. There have been few studies in this area. One classic controlled experiment, consisting of 86 subjects was conducted. We manipulated one independent variable (training). The control group undertook no training, the other 3 treatments were process training, process training with practice and process training with worked examples. The results show practice and worked examples proceeding process training, were both very promising training approaches. They did not affect false positive identification. However, their relative benefits were less clear. We also pinpointed a few possible areas for future research from this work. © 2005 IEEE.Publication Knowledge clusters: Dealing with a multilevel phenomenon(2009) Bhandar, M.; Pan, S.-L.; Tan, B.; INFORMATION SYSTEMSThe central idea of this paper is to comprehend knowledge integration in inter-organizational IS projects through a knowledge cluster view of inter-organizational IS projects. The proliferation of such projects combined with the complexity of managing them, motivated this study. The study is based on a single case study which involves four organizations collaborating on a project. Findings suggest that knowledge integration in inter-organizational projects occurs through knowledge clusters and involves the interaction of complementary specialized knowledge bases within a structure and influenced by the clusters' perceptions towards the project. Implications of the findings and future research opportunities are discussed.Publication The role of push-pull technology in privacy calculus: The case of location-based services(2009) Xu, H.; Teo, H.-H.; Tan, B.C.Y.; Agarwal, R.; INFORMATION SYSTEMSLocation-based services (LBS) use positioning technologies to provide individual users with reachability and accessibility that would otherwise not be available in the conventional commercial realm. While LBS confer greater connectivity and personalization on consumers, they also threaten users' information privacy through granular tracking of their preferences, behaviors, and identity. To address privacy concerns in the LBS context, this study extends the privacy calculus model to explore the role of information delivery mechanisms (pull and push) in the efficacy of three privacy intervention approaches (compensation, industry self-regulation, and government regulation) in influencing individual privacy decision making. The research model was tested using data gathered from 528 respondents through a quasi-experimental survey method. Structural equations modeling using partial least squares validated the instrument and the proposed model. Results suggest that the effects of the three privacy intervention approaches on an individual's privacy calculus vary based on the type of information delivery mechanism (pull and push). Results suggest that providing financial compensation for push-based LBS is more important than it is for pull-based LBS. Moreover, this study shows that privacy advocates and government legislators should not treat all types of LBS as undifferentiated but could instead specifically target certain types of services. © 2010 M.E. Sharpe, Inc.Publication Knowledge producers and consumers(2010) Kankanhalli, A.; Tan, B.C.Y.; Wei, K.-K.; INFORMATION SYSTEMSPublication Effects of website interactivity on consumer involvement and purchase intention(2007) Chua, W.S.; Jiang, Z.; Tan, B.C.Y.; INFORMATION SYSTEMSThis study attempts to understand how website interactivity (level of active control and direction of communication) can impact purchase intention through consumer involvement. The product type featured on the website is a moderating factor in the effects of interactivity. In a laboratory experiment, subjects were asked to perform purchasing tasks of non-fictional books or greeting cards on websites of varying levels of interactivity. Measures were obtained for the subjects' cognitive involvement, affective involvement and purchase intention. Results indicate that websites with high level of active control lead to cognitive involvement and, in some instances, affective involvement. Websites with bi-direction of communication lead to affective involvement for functional products but not expressive products. Responses from the subjects also revealed that there is a correlation between consumer involvement and purchase intention. Finally, future directions for researchers and implications for practitioners are addressed.Publication Three important determinants of user performance for database retrieval(1999) Chan, H.C.; Tan, B.C.Y.; Wei, K.-K.; INFORMATION SYSTEMSThree important factors that determine user performance during database retrieval are representation realism, expressive ease, and task complexity. Representation realism is the level of abstraction used when formulating queries. Expressive ease is the syntactic flexibility permitted when formulating queries. Task complexity is the level of difficulty of queries. A controlled laboratory experiment was conducted to assess the effects of these three factors on user productivity during database retrieval. The independent variables were representation realism (high versus low), expressive ease (high versus low), and query complexity (simple versus complex). The dependent variables were query accuracy and query time. Results show that all these three factors significantly affected user performance during database retrieval. However, their relative impact on query accuracy and query time differed. Moreover, these factors interacted in unique ways to moderate query accuracy and query time. Besides verifying prior empirical findings, these results offer several suggestions for future research and development work in the area of database retrieval.