The intraclass-correlation tag has no wiki summary.
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Intraclass Correlation Coefficients (ICC) with Multiple Variables
Suppose I have measured some variable in siblings, which are nested within families. The data structure looks like this:
family sibling value
------ ------- -----
1 1 y_11
1 2 ...
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What GEE-exchangeable method can do that robust variance can't?
I asked a related question before here on the difference between GEE method with exchangeable varcov structure v. Robust standard errors known as Huber White method in group randomized trials. As ...
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For intraclass correlation coefficients (ICC), interpret both “single” and “average” measured ICC values for reproducibility test?
Say there's a new machine for use in testing a biochemical marker's concentration in the blood, and we would like to know the reproducibility of this test.
We draw blood samples from 10 volunteers, ...
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Assessing the ability of two quantitative methods measuring the same thing
Suppose I have two scientific approaches to measuring the same physical quantity taking values between $[0,1]$. One (say method A) is generally accepted to be more accurate under certain conditions, ...
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Computing Cronbach's Alpha and Intraclass Correlation coefficient from an lmer model
I am trying to calculate the Intraclass Correlation for a rater study using R and the library lme4 and the function lmer. The data has the following design: The same 6 raters (at least 4) are rating ...
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Intrarater reliability
I would like to estimate the intrarater reliability in a MRI study. Different regions of interest were manually traced with a mouse-driven cursor in order to estimate their volumes. All data were ...
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Intraclass correlation to validate a measure
I would like to understand whether the output of an algorithm I developed agrees with the ratings of external observers. The number of observers is 10 and each of them rated on 2 3-point-Likert items ...
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Within group correlation of pearson's residuals
I have social network data in which an "ego" names a friend "alter". I am running a regression in R in which attributes of alter are predictors of outcomes for ego. So each observation is dyadic with ...
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How to compute effect size for different measures of association?
My colleagues and I are looking for guidance on how we might compute a common effect size (ES) from the following measures of association:
Pearson's r
Spearman's rho
Kappa
ICC / intraclass ...
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How would one calculate intrarater reliability in Stata?
My question follows from a previous excellent response in another post:
Intra- and inter-rater reliability on the same data
Wow, what a truly great response! I am running through a similar problem ...
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105 views
Intraclass correlation coefficient, non parametric data
Does the ICC require that my data are normally distributed?
If more information about my data is needed, just ask.
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207 views
Nonparametric ICC
Anyone can suggest me a nonparametric version of the intraclass correlation coefficient (ICC)? My model have the following details: two-way random effects model, consistency, average ratings as unit. ...
