effect size

any of various measures of the magnitude or meaningfulness of a relationship between two variables. For example, Cohen’s d shows the number of standard deviation units between two means. Often, effect sizes are interpreted as indicating the practical significance of a research finding. Additionally, in meta-analyses, they allow for the computation of summary statistics that apply to all the studies considered as a whole. See also statistical significance.

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Psychology term of the day

November 24th 2024

point scale

any scale for measuring some construct or attribute in which participants’ responses to a series of multiple-choice questions are given numerical values (points). The final score is the total points earned. See also Likert scale; semantic differential.