ch.getDprimeVariance | R Documentation |
This function computes the variance of a d prime using Miller (1996). Miller, J. (1996). The sampling distribution of d’. Perception & Psychophysics, 58, 65-72. much of the code taken from Suero, M., Privado, J., & Botella, J. (2017). Methods to estimate the variance of some indices of the signal detection theory: A simulation study. Psicológica, 38(1).
ch.getDprimeVariance(NtargetPresent, NtargetAbsent, probFA, probHit)
NtargetPresent |
the number of target present trials. |
NtargetAbsent |
the number of target absent trials. |
probFA |
the proportion of False Alarms. |
probHit |
the proportions of Hits. |
the variance of the dPrime. Take the square root to get the SD.
ch.getDprimeVariance (100,100, .2, .7)
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