Thank you for all of that information. I was primarily concerned that there was some underlying
theory that limited this type of comparison to the health/medical field or to physical measurements
by two mechanical (non-human) devices. When the literature about its use seemed to come only from
one field, I began to wonder if I had missed something.
Willard Hom
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Nick Cox
Sent: Tuesday, December 06, 2005 2:47 PM
To: [email protected]
Subject: st: RE: RE: uses of Bland-Altman plots
More generally, Bland-Altman plots are just
special case of residual vs fitted plots,
an idea with even longer roots. So after
an appropriate -regress-, -rvfplot- is
yet another way to do it.
Other discussions of this area have appeared in
2004. Graphing agreement and disagreement.
The Stata Journal 4: 329--349.
and will appear in
Assessing agreement of measurements and
predictions in geomorphology. Geomorphology
in press
Nick
[email protected]
Nick Cox
>
> Recently I've realised that in adding some details
> to -concord-, Tom Steichen and I have unwittingly
> revisited territory surveyed by Paul Seed in STB-55.
> As he in turn didn't quote our prior work from STB-43 this
> may look like some sordid dispute, but in each
> case no more than ignorance and oversight is to blame.
>
> Nick
> [email protected]
>
> Hom, Willard
>
> > I'm wondering if anyone knows if it is appropriate to use the
> > Bland-Altman approach (as implemented
> > in STATA) for comparing the measurements from two separate
> > rating mechanisms. That is, I'm checking
> > whether two rating sytems that rate the same population of
> > objects can be "tested" for their
> > equivalence through the Bland-Altman method (plots, etc.).
> >
> > In my perusal of literature that mentions use of the
> > Bland-Altman method, I have only seen its
> > application in the comparison of two measurement devices that
> > measure 'physical qualities" (as in
> > medical/health research). Has anyone seen an application
> > (and a defensible one) of the method in
> > psychology, sociology, or economics, where there may be an
> > interest in exploring the equivalence of
> > two sets of ratings of the same objects/persons/constructs....
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