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regression sum of squares

(symbol: SSregression) a number indicating the amount of variance in a dependent variable that can be explained by the variance in one or more associated independent variables. It thus describes how well a particular model fits the observed data. For example, in linear regression it is used to calculate a coefficient of determination or a coefficient of multiple determination, and in analysis of variance it is used to determine the total sum of squares and calculate an F ratio. Compare error sum of squares.

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Psychology term of the day

October 15th 2024

significant difference

significant difference

the situation in which a significance testing procedure indicates the statistical differences observed between two groups (e.g., a treatment group and a control group) are unlikely to reflect chance variation.