topic Re: Intraclass correlation coefficient with 95% confidence intervall in Discussions

Intraclass correlation coefficient with 95% confidence intervall

Steffo — Sat, 05 May 2018 14:47:21 GMT

Is it possible to calculate the intraclass correlation coefficient (ICC) with 95% confidence intervall in jmp?

Re: Intraclass correlation coefficient with 95% confidence intervall

Mark_Bailey — Mon, 07 May 2018 11:28:53 GMT

If you are using measurement system analysis (MSA), then it is available in the Measurement System Analysis platform. The point estimate of the ICC is provided. The confidence interval estimate of the ICC is not available.

See JMP Help menu for more details (Help, Books).

Re: Intraclass correlation coefficient with 95% confidence intervall

ron_horne — Tue, 16 Jun 2020 10:18:23 GMT

I know this is an old question by now, but i came across this issue myself the other day.

looking at the ICC definitions from this page: https://en.wikipedia.org/wiki/Intraclass_correlation#Calculation_in_software_packages

i have came up with the attached data table and calculating scripts. The ICC is the first Percent of total in each Random coefficients table.

The confidence interval can be derived from the 95% CI to the variance components. Any other confidence range (i.e. 90%) can be produced manually or by changing platform preferences.

I would appreciate it if someone can confirm the calculations and terminology are consistent with the ones presented on Wikipedia.

Perhaps someone can make a GUI add in that will make a nice table with all the different ICC's and their confidence intervals.

All the best,

Ron