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Psicofisica
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z(H) = Ms – c z(F) = Mn-c
Como d’ = Ms – Mn y Ms = z(H) + c y Mn = z(F) +c
Ms – Mn = (z(H) + c) – (z(F) +c) = z(H) – z(F)
Criterion location measures index bias by measuring the distancebetween the decision criterion and the intersection of the two stimulus distributions.
Likelihood ratio measures index bias by measuring the relative height of the two distributions at the decision criterion.
The lack of empirical support favoring one family of bias measures is surprising, because the isobias functions predicted by criterionlocation measures clearly differ from those predicted by likelihood ratio measures.
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