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How do you check if your judgments are consistent in AHP?

In the Analytic Hierarchy Process (AHP), how is the Consistency Index calculated and interpreted?

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By Natasha Answered 2 months ago

In AHP, the Consistency Index (CI) tells you how logically consistent your pairwise comparisons are. It’s computed as CI = (λ??? − n) / (n − 1), where λ??? is the largest eigenvalue and n is the number of criteria. To interpret it, CI is divided by the Random Index (RI) to get the Consistency Ratio (CR). If CR is below 0.1, your judgments are considered reasonably consistent.

     

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