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THE FEUTEX TOOLKIT

One-Way Intraclass Correlation

Estimate single-measure intraclass correlation from balanced one-way ANOVA mean squares.

Statistics workspace● Runs in your browser
01 Your input
02 Your result
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FormulaIcc = (between-within)/(between+(k-1)*within); Between Variance = (between-within)/k
Sources and model references

Made for real tasks

  • Estimate single-measure intraclass correlation from balanced one-way ANOVA mean squares.
Explore step-by-step workflows →

Worked example

Inputs

Between-subject mean square
12 number
Within-subject mean square
3 number
Measurements per subject
3 count

Expected results

Icc
0.5 number
Between Variance
3 number

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter between-subject mean square, within-subject mean square, measurements per subject.
  2. Use the displayed units and confirm the model assumptions.
  3. Calculate and compare the outputs against your input scenario.

Try this example

{
  "between": 12,
  "within": 3,
  "k": 3
}

Accuracy and scope

Balanced one-way random effects ICC(1,1). Negative estimates are retained rather than clipped.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.