Decision making is a critical component of visual inspection and a primary determinant of inspection quality. Previous studies in inspection have shown that pacing and costs have an effect on decision performance. The objective of this study was to evaluate human decision making performance under different conditions of pacing and cost tradeoffs. The study utilized twelve subjects who performed a decision-making (line judgment) task under paced and unpaced conditions and under various reward and penalty structures associated with various decision making outcomes (hits, correct accepts, false alarm, misses). The results were analyzed using Signal Detection Theory (SDT) measures of sensitivity and response criterion. Explicit costs had a significant effect on the response criterion, whereas pacing had a significant effect on the sensitivity.
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