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n. the fourth central moment of a probability distribution. It is a statistical description of the degree of peakedness of that distribution. For example, the ages of a sample of college freshmen would probably show kurtosis, having a high peak at age 18. See leptokurtic; mesokurtic; platykurtic.

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Psychology term of the day

June 18th 2024

survival analysis

survival analysis

a family of statistical methods used to model a variety of time-related outcomes. The simplest application of survival analysis involves estimating the amount of time until the occurrence of an event (e.g., death, illness, graduation, marriage) for a group of individuals, but the technique also may be applied to compare durations for two or more groups and to build multivariate models that explain variation in duration. Also called event history analysis.