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mcmillan
2011 Jul 14
1
Calculate Az (A sub z) with R?
...ity from SDT (alternative to d', Az). I
have written my own functions for d', A', B"d, and am aware of the 'sdtalt'
package, but I have yet to find a way to calculate Az, since it require the
phi operator.
For a relevant paper/discussion (and formula), please see Verde and
McMillian, 2006 (Measures of sensitivity based on a single hit rate and
false alarm rate: The accuracy, precision, and robustness of d', Az, and Az)
Any help on this would be greatly appreciated!
David Dobolyi
Graduate Student
Cognitive Psychology
University of Virginia
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