failure-to-inhibit hypothesis

a theory of cognitive aging that attributes attention and memory problems in older adults to their increasing inability to select relevant information and suppress irrelevant information when performing a cognitive task. [developed by U.S.-born Canadian psychologist Lynn Ann Hasher (1944– ) and U.S. psychologist Rose T. Zacks (1941– )]

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Psychology term of the day

November 24th 2024

regression sum of squares

(symbol: SS_regression) 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.