median test

a nonparametric method that assesses the equality of the midpoints (medians) in two or more samples of data to determine whether they come from the same population. Although previously used to indicate any of several alternative procedures, the term generally is used now to refer to the Wilcoxon–Mann–Whitney test.

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Psychology term of the day

May 9th 2024

slow-wave sleep

deep sleep that is characterized by increasing percentages of particular types of delta waves on the electroencephalogram, corresponding to Stages 3 and 4 of NREM sleep. See also sleep stages.