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Effects of prior knowledge and concept-map structure on disorientation, cognitive load, and learning Abstract This study explored the effects of prior knowledge (high vs. low; HPK and LPK) and concept-map structure (hierarchical vs. network; HS and NS) on disorientation, cognitive load, and learning from non-linear documents on " the infection process of a(More)
6 8 a r t i c l e i n f o 9 Article history: 10 Available online xxxx 11 Keywords: 12 Coherence 13 Cognitive load 14 Disorientation 15 Learning 16 Non-linear document 17 Prior knowledge 18 1 9 a b s t r a c t 20 A study was carried out to investigate the effects of prior knowledge on learning with a non-linear elec-21 tronic document including an(More)
In this paper we examine the cognitive processes of information retrieval in hypertext. We propose a cyclical model which includes three main phases : evaluation, selection and processing. Each phase includes a set of specific processes. For each phase we propose a definition and empirical illustrations. We also discuss the interactions which take place(More)
The study examined the interaction effects of prior knowledge and hypertexts structure (network vs. hierarchy) on comprehension. Comprehension was investigated analyzing jointly three dependent variables: comprehension outcomes, coherence of the reading sequences and feelings of disorientation. The results supported most of the assumptions showing an(More)
—Retrieving information is a central operation when accomplishing most of today business tasks. Unfortunately, a person has hard time finding relevant information necessary to accomplish its business task due to the complexity of these information processes. In certain corporate bodies (aeronautical, automotive, etc.) these tasks are critical and should be(More)
This article presents research that aims to construct a computer-based system that (1) supports learners in organizing themselves in the context of a mediated pedagogic collective challenge and (2) supports human tutors in monitoring the learners' process, and supporting it. We present the result of an exploratory experiment that helps in understanding the(More)
Learners engaged in CSCL macro-scripts are involved in self-organization activities. We present an exploratory study that suggests that Bardram's theoretical model of collective work dynamics is a pertinent basis for both (1) designing interfaces providing a passive support that engages learners in an explicit organization activity, and (2) making learners'(More)
In this paper we present a business context information manager based on a novel and generic interpretation of the context. This manager takes into account various contextual dimensions and acts as an intermediary between information system and contextual information. First, we discuss how the manager creates a snapshot of the context that is provided to(More)
An exploratory experiment was carried out in order to question the relationships between prior knowledge, comprehension performance, on-line processes and disorientation in a non-linear document (hypertext). 14 participants read a non-linear document about a virus' infectiousness process which imposed to learners to construct themselves their reading orders(More)