2007 年 24 巻 3 号 p. 196-201
In this study, a functionality of freely browsing opinions of other members was added to CSCL system KNITS. In adding the function to the system, two versions were created to represent the relative importance of flexibility versus required cognitive resource in user-interface. Type A seeks greater flexibility, allowing users to choose, read, and rate other users’ opinions without restriction. Type B reduces cognitive load of participants by automatically selecting four neighbors’ opinions in the virtual network. Participants were university students enrolled in an introductory psychology course. Preliminary practice used the original system, the first practice, used Type A. and the second practice used Type B, with 82, 71. and 76 users respectively. Participants’ evaluation revealed that Type B was considered to be easier to use and required less effort than Type A. The results confirmed our claim that it is important to consider cognitive load of participants in designing CSCL.