Sensitivity index d'

Version 3.1.1.0 (2.18 KB) by Martin Böckmann-Barthel
dprime calculates the sensitivity index d' and bias criterion c from signal detection theory
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Updated 11 May 2023

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The sensitivity index d' measures the distance between the signal and the noise means in standard deviation units. c is the distance of the bias criterion from the point where neither response is favored, also
in standard units. Positive c values indicate a bias towards high hit rates and false alarm rates. Correction of perfect rates according to 1/2N rule is included.
cf. Stanislaw H, Todorov N, Behav Res Meth (1999) 31, 137-149

Cite As

Martin Böckmann-Barthel (2025). Sensitivity index d' (https://uk.mathworks.com/matlabcentral/fileexchange/65377-sensitivity-index-d), MATLAB Central File Exchange. Retrieved .

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Created with R2012b
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Version Published Release Notes
3.1.1.0

meaning of sign of bias criterium corrected (thx Elke)
3.1.0.0