asymmetrical distribution

any nonnormal distribution: a set of ordered scores in which the frequency of values is not equal above and below the center or midpoint of the set. If one divides the distribution at its mean, the arrangement of scores differs across the two halves. See skewness. Compare symmetrical distribution.

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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.