external evaluator

an individual conducting a program evaluation who is not a regular full-time employee of the program being evaluated. Such an evaluation is considered more objective and potentially less biased than one produced by an internal evaluator. External agents are often preferred for summative evaluations, with possible highly visible consequences, to ensure the validity and credibility of the results.

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Psychology term of the day

February 16th 2025

multiple comparison test

any of various statistical procedures used to follow up on a significant result from an analysis of variance by determining which groups in particular differ in their mean values. Examples include Duncan’s multiple range test, the Fisher least significant difference test, the REGWQ test, the Scheffé test, and Tukey’s honestly significant difference test. See also post hoc comparison.