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| '''On the use of the +0.5 smoothing for calculating the empirical logit transform see:''' | == On the use of the +0.5 smoothing for calculating the empirical logit transform see: == |
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| '''On the use of the +0.5 smoothing for calculating the d' signal detection parameter see:''' | == On the use of the +0.5 smoothing for calculating the d' signal detection parameter see: == |
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| [Last updated on 27 November, 2003] | == See also == [wiki:FAQ/sigdet Signal Detection Parameters from SPSS] There a different convention is followed of putting ''1/2N'' and ''1-1/2N'' in place of ''0%'' and ''100%''. |
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| [http://www.mrc-cbu.cam.ac.uk/Statistics/index.shtml Return to Statistics main page] | [wiki:CbuStatistics Return to Statistics main page] |
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| ~- Last updated on 27 July, 2006 -~ |
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.
See also
[wiki:FAQ/sigdet Signal Detection Parameters from SPSS] There a different convention is followed of putting 1/2N and 1-1/2N in place of 0% and 100%.
[wiki:FAQ Return to Statistics FAQ page]
[wiki:CbuStatistics Return to Statistics main page]
[http://www.mrc-cbu.cam.ac.uk/ Return to CBU main page]
These pages are maintained by [mailto:ian.nimmo-smith@mrc-cbu.cam.ac.uk Ian Nimmo-Smith] and [mailto:peter.watson@mrc-cbu.cam.ac.uk Peter Watson]
Last updated on 27 July, 2006