one-group pretest–posttest design

a variation of the pretest–posttest design in which only a single set of participants is measured on a dependent variable of interest, exposed to a treatment or intervention, and then measured again to determine the change or difference between the initial (pre-) and second (post-) measurement. The lack of a control group in this type of research design makes it difficult to attribute gains in the posttest score to the intervention, as other elements (e.g., participant maturation) may have contributed to any change observed. Also called one-group pre–post design.

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Psychology term of the day

February 11th 2025

interest factors

in vocational guidance and personnel selection, an individual’s interests or preferences regarded as indicators of personality traits and therefore of suitability for a particular job or type of employment. Interest factors can be derived from interest tests and other self-report inventories or from hobbies, leisure-time activities, and previous jobs.