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Table 4 Results for homogeneous variance using a Bernoulli variance function to capture heteroscedastic variance

From: Estimation of an inter-rater intra-class correlation coefficient that overcomes common assumption violations in the assessment of health measurement scales

Term

Posterior summary

 

Median

2.5%

97.5%

β[0]

0.317

0.203

0.449

β[Rater]

-0.088

-0.102

-0.074

β[Decision-aid]

0.250

0.217

0.281

(σ/100)2

0.041

0.035

0.048

τ

0.015

0.011

0.019

ω

0.004

0.001

0.092

ICC

0.609

0.520

0.745

ICCb

0.681

0.568

0.935

  1. *ICCb denotes the ICC for the case when encounters are pooled across studies (see Eq. 10) whereas ICC is the conventional within-study ICC (see 8). In both cases the ICC is averaged over a population of encounters, as in 9