methods
type: Collection
type: ConceptGroup
member: standard deviations

general linear models
type: Concept
narrower: standard deviations

standard deviations
type: Concept
broader: general linear models
broader: statistical and measurement terms
definition: Standard deviation (SD) is the average distance of each score in a distribution from the mean. It is calculated by squaring the difference between each score and the mean, averaging those squared differences, and taking the square root of that average. [Source: Encyclopedia of School Psychology; Standard Deviation]

statistical and measurement terms
type: Concept
narrower: standard deviations