Message-ID: <2566315.fojsGdY2Yc@ev8sa6>
Date: 2018-06-18T10:11:06Z
From: Pierre de Villemereuil
Subject: Using variance components of lmer for ICC computation in reliability study
In-Reply-To: <4737E17E7C8C3C4A8B5C1CE5346371D4A84B5063@EXCH06S.adqimr.ad.lan>
Hi David,
> > Thing is: there is nothing like this for GLMMs. The lowest level of "residual variance" is basically the
> > distribution variance.
> > You could think there would be such a thing with a threshold model, but it turns out that the total variance of
> > the liability scale is non identifiable, so nothing there either.
>
> There is some information when there are multiple thresholds.
You mean information to measure e.g. additive over-dispersion?
I agree but wouldn't you need quite a lot of thresholds (categories) for this to be measurable and not poses numerical issues? I have no practical experience in trying to account for that, so I'm curious if you have any experience in this.
Best,
Pierre.