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F max statistic

in an analysis of variance, a value formed from the ratio of the largest variance over the smallest variance from the set of groups being assessed. The Fmax statistic is assessed for significance by looking up the critical value in a statistical table for the relevant number of groups and degrees of freedom. If the calculated Fmax statistic is larger than the critical valve, then there is evidence of heterogeneity of variance, which violates one of the assumptions of the analysis and renders its results invalid.

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Psychology term of the day

January 28th 2025

summative evaluation

summative evaluation

1. the appraisal of a student’s achievement at the conclusion of an educational program. Also called terminal assessment.

2. in evaluation research, an attempt to assess the overall effectiveness of a program in meeting its objectives and goals after it is in operation. This is in contrast to formative evaluation, which is used to help in the development of the program. Also called ex post facto evaluation. See also outcome evaluation.