Friedman Test Calculator
Friedman Test: a planned Super Calculator tool. Covers subject by condition data matrix and alpha. Stub page while the tool and its worked example are prepared.
Friedman Test Calculator is a planned calculator in the mathematics section of Super Calculator, covering statistics and probability.
What this calculator will compute
Inputs: subject by condition data matrix and alpha.
Outputs: Friedman chi-square, df, p value, mean rank per condition and Kendall’s W concordance.
Formula, recorded as scope and not yet verified against a primary source: Rank within each block, then chi-square_F = (12 / (nk(k+1))) * sum(R_j^2) - 3n(k+1) against chi-square with k-1 df. The Iman-Davenport F transformation is more accurate for small n and k.
Status
This page is a stub. The calculator is not built, no figure on this page has been verified against the authority that sets it, and nothing here should be used to make a decision. The page exists so that the site structure is complete and so that articles can link this concept on first mention.
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