Strategies and tactics in fault diagnosis

Verbal protocol accuracy in fault diagnosis

“…Unfortunately, for the fault diagnosis task used in the present study, this evidence is rather modest . Apart from the results of a somewhat subjective analysis of the basic strategies and some suggestive evidence presented in the literature (Morrison and Duncan, 1988 ;Patrick, 1987 and, there are no really "hard" data on the specific contents of STM when performing this task . Furthermore, given the difficulties in determining on empirical grounds in what form task-relevant information resides in STM (see e .g .…”

“…Morrison and Duncan (1988) have identified two similar strategies for the task . In the following, these strategies are described from a more "logical" and a more "psychological" point of view .…”

Depression and Problem-Solving Performance on a Fault-Diagnosis Task

“…Brooke and Duncan, 1981;Morrison and Duncan, 1988). Each problem consisted of a network of 24 boxes or units in a 4 x 6 matrix connected in a wiring diagram (see Figure 1).…”

Predictors of fault-finding skill

“…Ackerman's theory helps to place previous research on fault-finding skill into a theoretical framework. For example, in one study (e.g., Morrison & Duncan, 1988b), prior to experience in fault-finding, it was found that level of performance was predicted by performance on a task that required subjects to identify a match for a target figure amongst a set of distractors. It might be argued that this is an index of perceptual speed, since aspects of tasks performance are measured by time taken to find a matching figure amongst a set of similar alternatives.…”