post hoc comparison

any examination in which two or more quantities are compared after data have been collected and without prior plans to carry out the particular comparison. For example, after obtaining a significant F ratio for a data set, a researcher may perform post hoc comparisons to follow up on and help explain the initial findings. Different statistical tests are required for post hoc comparisons than for a priori comparisons. Also called a posteriori comparison (or contrast); post hoc contrast; unplanned comparison (or contrast).

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Psychology term of the day

December 22nd 2024

eclectic counseling

any counseling theory or practice that incorporates and combines doctrines, findings, and techniques selected from diverse theoretical systems.