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Re: stability in CMs

I think you could take the approach of using log-linear modeling to
statistically compare the two matrices to one another, rather than
treating diagonals and off-diagonals as something different.

With this approach, you could also collapse the matrices by phonetic
features (voicing, place and manner) before comparing, so as to
determine if changes were limited to a particular feature.

This might be relevant:
Bell, T.S., Dirks, D.D., Levitt, H., & Dubno, J.R. .  Log-linear
modeling of consonant confusion data.  Journal of the Acoustical Society
of America, 79(2), 518-525.

Yours - Stuart Rosen

Yoon Yang-soo wrote:
> Dear List,
> I'm working on analyses of confusion matrices measured twice from the
> same group of HI listeners 6 month interval.
> I want to assess the stability of performance on both diagonals and
> off-diagonls as a function of SNR and of test-retest.
> So far I found two relevant literatures (Dubno Dirks, 1982, Bilger
> and Wang, 1976), reporting correlations between test and retest.
> I wonder if any knows ways to show the stability other than
> correlations, and
> I wonder if anyone knows references other than those.