Abstract not found

Abstract. This paper considers learner misconceptions information which is presented to the learner in an open learner model. We suggest that specific information about misconceptions may be of benefit to the learner, to help them reflect on their knowledge and understanding. We investigate acceptance of their misconceptions presented as animations and step-by-step text descriptions by two groups of users: trainee teachers, and computer engineering students taking an educational technology course. Our study revealed mixed findings.

Abstract. While eye-tracking systems become gradually improved and easier to apply, the methodological challenges of how to analyze, interpret and relate the eye-tracking data to user processing remain. Studies of programming behavior are not an exception. We have conducted a reanalysis of eye-tracking data from a previous study that involved programmers of two experience groups debugging a program with the help of graphical representation. Proportional fixation time on each representation, frequency of visual attention switches between the representations and type of switch were investigated in relation to five consequential phases of ten minutes of debugging. Therefore, we have increased the granularity of focus on debugging process. We found some repetitive patterns of visual strategies that were associated with less experienced programmers finding fewer errors. We also discovered that at the beginning of the process programmers make use of both the code- and graphical representations while frequently switching between them. During the process, more experienced programmers began to integrate also the output of the program and finish the debugging with frequent switching between the three representations. We discuss benefits and limitations of this approach to analyzing and interpreting the quantitative eye-tracking data. As part of future research we propose to investigate the symmetries of representation switching behavior. 1

Evaluation de l’impact d’un patron de conception sur la compréhension et la maintenance de programmes Une expérimentation par un système d’eye-tracking