heteroscedastic

British  

/ ˌhɛtərəʊskɪdæsˈtɪsɪtɪ, ˌhɛtərəʊskɪˈdæstɪk /

adjective

1. (of several distributions) having different variances

2. (of a bivariate or multivariate distribution) not having any variable whose variance is the same for all values of the other or others

3. (of a random variable) having different variances for different values of the others in a multivariate distribution

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Other Word Forms

• heteroscedasticity noun

Etymology

Origin of heteroscedastic

C20: from _hetero- + scedastic, from Greek skedasis a scattering, dispersal

Example Sentences

All experiments reported in Figs , , , were repeated at least three times in the laboratory, except , which was performed once. t-tests were heteroscedastic to allow for unequal variance and distributions assumed to follow a Student’s distribution, and these assumptions are not contradicted by the data.

From Nature