Differences between revisions 1 and 3 (spanning 2 versions)

Adding 0.5 to cells when calculating d' and the empirical logit transform

On the use of the +0.5 smoothing for calculating the empirical logit transform see:

David R COX and E J SNELL (1989) Analysis of Binary Data , Chapman and Hall: London

On the use of the +0.5 smoothing for calculating the d' signal detection parameter see:

Michael J HAUTUS (1995) Corrections for extreme proportions and their biasing effects on estimated values in d'. Behavioral Research Methods, Instruments, & Computers, 27(1), 46-51.

[Last updated on 27 November, 2003]

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