Cynthia L. Corritore

On-line trust: concepts, evolving themes, a model

Trust is emerging as a key element of success in the on-line environment. Although considerable research on trust in the offline world has been performed, to date empirical study of on-line trust has been limited. This paper examines on-line trust, specifically trust between people and informational or transactional websites. It begins by analysing the definitions of trust in previous offline and on-line research. The relevant dimensions of trust for an on-line context are identified, and a definition of trust between people and informational or transactional websites is presented. We then turn to an examination of the causes of on-line trust. Relevant findings in the human-computer interaction literature are identified. A model of on-line trust between users and websites is presented. The model identifies three perceptual factors that impact on-line trust: perception of credibility, ease of use and risk. The model is discussed in detail and suggestions for future applications of the model are presented.

A comparison of the comprehension of object-oriented and procedural programs by novice programmers

Abstract This paper reports on two experiments comparing mental representations and program comprehension by novices in the object-oriented and procedural styles. The subjects were novice programmers enrolled in a second course in programming which taught either the object-oriented or the procedural paradigm. The first experiment compared the mental representations and comprehension of short programs written in the procedural and object-oriented styles. The second experiment extended the study to a larger program incorporating more advanced language features. For the short programs there was no significant difference between the two groups with respect to the total number of questions answered correctly, but the object-oriented subjects were superior to the procedural subjects at answering questions about program function. This suggests that function information was more readily available in their mental representations of the programs and supports an argument that the object-oriented notation highlights function at the level of the individual class. For the long program a corresponding effect was not found. The comprehension of procedural subjects was superior to object-oriented subjects on all types of question. The difficulties experienced by the object-oriented subjects in answering questions in a larger program suggest that they faced problems in marshaling information and drawing inferences from it. We suggest that this result may be related to a longer learning curve for novices of the object-oriented style, as well as to features of the OO style and the particular OO language notation.

A foundation for understanding online trust in electronic commerce

Trust is a key concept in business, particularly in electronic commerce (e‐commerce). In order to understand online trust, one must first study trust research conducted in the offline world. The findings of such studies, dating from the 1950’s to the present, provide a foundation for online trust theory in e‐commerce. This paper provides an overview of the existing trust literature from the fields of philosophy, psychology, sociology, management, and marketing. Based on these bodies of work, online trust is briefly explored. The range of topics for future research in online trust in e‐commerce is presented.

Direction and scope of comprehension-related activities by procedural and object-oriented programmers: an empirical study

Examines the direction and scope of comprehension-related activities of professional programmers carrying out several program comprehension and maintenance activities over time. Procedural and object-oriented (OO) programmers studied a program and subsequently performed modifications during two sessions. The results showed that the OO programmers tended to use a strongly top-down approach to program understanding during the early phase of studying the program, but increasingly used a bottom-up approach during the maintenance tasks. The procedural programmers used a more bottom-up orientation throughout all activities. The scope of the activities was greater for the procedural than for the OO programmers. However, regardless of the programming paradigm used, the programmers over time built a broad, rather than a localized, view of the program.

Inquiry-Based Learning and the Flipped Classroom Model

Abstract The flipped classroom model of teaching can be an ideal venue for turning a traditional classroom into an engaging, inquiry-based learning (IBL) environment. In this paper, we discuss how two instructors at different universities made their classrooms come to life by moving the acquisition of basic course concepts outside the classroom and using class time for active problem-based learning. Results from student surveys are presented to relate student perceptions of the flipped/IBL classroom model.