Ci. Trudel et Sj. Payne, SELF-MONITORING DURING EXPLORATION OF AN INTERACTIVE DEVICE, International journal of human-computer studies, 45(6), 1996, pp. 723-747
Citations number
35
Categorie Soggetti
Psychology,Ergonomics,"Computer Sciences","Controlo Theory & Cybernetics","Computer Science Cybernetics
We report four experiments in which we manipulated the conditions unde
r which subjects explored an unfamiliar interactive device without the
benefit of assistance or instruction. Our aim was to increase the amo
unt of knowledge subjects acquired about the device and to influence h
ow efficient they were at later applying the operational procedures th
ey discovered. The interventions were to interrupt subjects' explorati
on at regular intervals and ask them to verbally report on what they h
ad learned so far (Experiment 1) or to state their future intention (E
xperiment 2). Both manipulations yielded significant benefits, when co
mpared to subjects who explored the same device without such interrupt
ions. In Experiment 3 there were four conditions in which interrupted
subjects reported on topics of different levels of relevance to the ta
sk. This experiment showed that it is the relevance of the verbalised
content as opposed to an ''incubation'' period which affects performan
ce in a beneficial manner. Finally we investigated whether it was nece
ssary to employ external prompts to obtain these effects (Experiment 4
). It was found that subjects were in fact able to effectively interru
pt their work in order to review their progress. (C) 1996 Academic Pre
ss Limited