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Expert Knowledge and Cognitive Stress in Pairwise Comparison

There are several studies addressing the consistency of evaluations made through pairwise comparison in decision-making. For the most part, these studies offer algorithms to reduce the inconsistency of evaluations and indices to measure the degree of evaluation consistency.

Illustrative image: Expert Knowledge and Cognitive Stress in Pairwise Comparison

However, Enacom's specialists found that focusing on these two fronts does not cover all the gaps associated with the problem of inconsistent evaluation, and they advocate further analysis. Keep reading to learn more about the research.

What Enacom researchers say about cognitive stress

In a paper published in August of this year, investigating the relationship between a lack of specialized knowledge and the inconsistency of evaluations, Enacom researchers reveal that the expert's limited knowledge of the subject does not interfere with the degree of evaluation consistency.

The study's results show that the degree of evaluation consistency is 59% lower when the expert has no knowledge of the decision subject but has theoretical knowledge and experience in evaluating alternatives through pairwise comparison.

The conclusion is that this is a notable contribution, with a high degree of universality and applicability, since instructing decision-makers about the problem of inconsistency makes this a cheaper and easier way to increase the degree of evaluation consistency without altering the original information.

In addition, the approach introduced reduces the number of evaluations and the evaluation time by 8.0 and 7.8 times, respectively.

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