*Addendum* Re: SDT: What is D-sub-A and Sakitt's D?

1999-12-14 Thread Charles Metz
When I asserted a few minutes ago that: > In such non-normal situations, the indices are *not* > defined in terms of means and standard deviations, but > instead in terms of the straight-line ROC curve ... I should have warned that some computer programs may (incorrectly) estimate the index

*CORRECTION* Re: SDT: What is D-sub-A and Sakitt's D?

1999-12-14 Thread Charles Metz
(PLEASE NOTE: This is a corrected version of a reply I posted earlier but quickly canceled. My initial reply contained a typographical error in its first expression for Sakitt's D.) Victor A. Gombos wrote: > I am using Systat 9.0 for my master's thesis data--the > nature of my analyses depe

Re: SDT: What is D-sub-A and Sakitt's D?

1999-12-14 Thread Charles Metz
Victor A. Gombos wrote: > I am using Systat 9.0 for my master's thesis data--the > nature of my analyses depend heavily on Signal Detection > Theory. Therefore, of course I am using the Signal > Detection Analysis program in Systat. Systat reports a > number of things, including the ROC

SDT: What is D-sub-A and Sakitt's D?

1999-12-07 Thread Victor A. Gombos
[Please forgive me if this esoteric question was answered before in this newsgroup] I am using Systat 9.0 for my master's thesis data--the nature of my analyses depend heavily on Signal Detection Theory. Therefore, of course I am using the Signal Detection Analysis program in Systat. It seems t