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Glass’s d

an effect size measure that represents the standardized difference between means (i.e., the difference in average values for two samples divided by the standard deviation of the second sample). It is often used in meta-analysis and other research in which it is important to determine whether an effect persists across studies in order to consolidate a result. Also called Glass’s delta. See also Cohen’s d; Hedges’s g. [Gene V. Glass (1940–  ), U.S. statistician]

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Psychology term of the day

September 8th 2024

number

number

n. in linguistics, a grammatical classification of nouns, pronouns, and any words in agreement with them according to whether they are singular or plural (or in some languages, dual). In English, number is most commonly expressed by the plural noun ending -s (e.g., boy, boys) and in the inflection of the verb to agree with the number of the subject (e.g., The boy runs; The boys run).