mean deviation

for a set of numbers, a measure of dispersion or spread equal to the average of the differences between each number and the mean value. It is given by (Σ|x_i – μ|)/n, where μ is the mean value and n the number of values.

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Psychology term of the day

November 24th 2024

commonality analysis

in multiple regression, a technique by which the known variance in an outcome or response variable is separated out into the parts that can be uniquely attributed to each individual predictor variable and the parts that are common to any two or more variables.