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Cochran Q test

a nonparametric statistical procedure applied when each experimental unit (e.g., an individual participant) is observed under multiple conditions and the data can have only one of two outcomes (e.g., yes or no, pass or fail). The Q test is used to evaluate the equality of the outcomes under the different conditions. [William Gemmell Cochran (1909–1980), Scottish-born U.S. statistician]

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January 14th 2025

Kruskal–Shepard scaling

Kruskal–Shepard scaling

a type of multidimensional scaling applied to judgments of similarity or dissimilarity for pairs of items (e.g., cities). The dissimilarities are represented by distances between items in a highly dimensional space: Larger distances indicate greater dissimilarity. [William Henry Kruskal (1919–2005), U.S. statistician; Roger N. Shepard (1929–  ), U.S. experimental and cognitive psychologist]