[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 to me that using d' is not as good as D-sub-a or Sakitt's D --
the subjects' responses I am analyzing are confidence ratings, on a
scale from one-to-eight -- as there tends to be greater
fluctuations/variability of d-prime as opposed to the other measures.
In this way, I'm committed to D-sub-a thinking it is more robust and
consistent.
But I need to know how D-sub-A and Sakitt's D differ from d'. I haven't
been able to find information on this from any other source thus far.
Can anyone tell me what these measures are and how they differ from d'?
Thanks,
V.
