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A training approach to the acquisition and retention of fault-finding skills: Making instructions "Visible" on the interface

Linou Nadia , Kontogiannis Thomas

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URI: http://purl.tuc.gr/dl/dias/5CB7D312-FDD9-4E23-B2AC-EFD98ACE5563
Έτος 2005
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
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Βιβλιογραφική Αναφορά N. Linou , T. Kontogiannis, "A training approach to the acquisition and retention of fault-finding Skills: Making instructions "Visible" on the interface," International Journal of Human-Computer Interaction, vol. 18, no. 1, pp. 59-84, 2005. doi: 10.1207/s15327590ijhc1801_4 https://doi.org/10.1207/s15327590ijhc1801_4
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Περίληψη

This study explores how information technology can be used as a training medium in the acquisition and retention of fault-finding skills. Instructions on strategies were made visible on the user interface by presenting trainees with a set of telltale signs derived from diagnostic heuristics. The objective was to map a diagnostic strategy into the appearance and dynamic behavior of a graphical display. A group of participants T(new) was trained in using the new interface, and verbal instructions (e.g., plant theory) were provided to guide discovery of diagnostic rules. A second group T(old) received the same plant theory but practiced on a conventional interface, whereas a third group T + H was trained to apply a set of heuristics with the support of plant theory. The new interface helped the T(new) group to achieve higher accuracy scores than all other groups in acquiring fault-finding skills. A retention test, 6 weeks later, showed that the T(new) group retained their skills better than the T(old) group. The T(new) group was also better than the T + H group, but not significantly so, in terms of reconstructing faults encountered in the past and solving faults that had never been encountered before. The implications of this study are that making a diagnostic strategy visible reduces the workload in remembering diagnostic heuristics, encourages discovery of new heuristics, and allows trainees to impose their own organization of knowledge. These learning mechanisms may provide a better basis for training in the acquisition and retention of diagnostic skills.

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