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standard error of the mean

(symbol: SEM; σM) a statistic that indicates how much the average value (mean) for a particular sample is likely to differ from the average value for the larger population from which it is drawn. It is equal to σ/√n, where σ is the standard deviation of the original distribution and n is the sample size.

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Psychology term of the day

May 9th 2024

ABR

ABR

abbreviation for auditory brainstem response. See brainstem auditory evoked response.