On Jan 29, 2016, at 10:54 AM, Mike Palij wrote:
>> So SDT is really about behavior under stimulus control, not just stimuli.
>> for my own experimental application:
>
> Your behavioristic tendencies are showing. ;-)
I’ll take that as a compliment ;-).
>> "Brandon, Paul K.
>> A Signal Detectio
Thank you all for your great responses. Mike, I knew I could count on you,
and yes, I read your message in its entirety. :) Why I lumped all of that
together is that it is all lumped together in the unit we are on. I talked
about each separately, but since my students tend to be math phobes, I
wan
No argument here. Just me not being clear.
A' and AUC are valid measures comparing two systems and much more interpretable
than other SDT measures given the parameters as Mike explains but they are not
direct measures of SDT parameters as typically explains. Pastore, Crawley,
Berens and Ske
On Fri, 29 Jan 2016 08:49:23 -0800, Douglas Peterson wrote:
[snip]
... SDT continues to be applicable in a number of settings,
particularly medical tests, many use a the AUC that Mike mentions
and while this isn't technically SDT (no z transforms) the ROC
method is identical (here is a short and
On Fri, 29 Jan 2016 07:47:20 -0800, Paul Brandon wrote:
The main point I liked to make about Signal Detectability is
that there is no such thing in the sense that a given stimulus
has a given strength below which it cannot be detected.
Exactly right, The old idea of an absolute threshold is
sh
Carol,
E-mail in three parts
1. The activity I use to demonstrate SDT
2. Why SDT is useful and applicable
3. Why ROC curves are better in application
PART 1
I use "the dice game" activity when teaching SDT and ROC curves and find that
it helps students really grasp how shifting the criterion has
The main point I liked to make about Signal Detectability is that there is no
such thing in the sense that a given stimulus has a given strength below which
it cannot be detected.
First you must define the response being controlled by the stimulus.
We are really talking about changes in the likel
On Thu, 28 Jan 2016 20:08:38 -0800, Carol DeVolder wrote:
Dear TIPSters,
I am currently teaching about the Theory of Signal Detectability,
Stevens's Power Law, and ROC curves in my Sensation and
Perception course.
I have to admit that I find your lumping Stevens' Power law
with SDT and ROC (or,
