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parallel-groups design

a research design that compares two conditions or treatments (e.g., relaxation training vs. no training) such that both groups of participants are studied simultaneously and each participant receives one treatment only. A parallel-groups design thus contrasts with a crossover design, in which each individual participates in each condition.

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Psychology term of the day

February 24th 2025

aesthetic overshadowing

aesthetic overshadowing

the fact that a single prominent characteristic of a stimulus accounts almost entirely for preference for the stimulus generally, with other characteristics being largely ignored. For example, a person viewing a painting who finds the colors appealing will tend to disregard itssize, complexity, and other aspects in determining his or her overall liking for the item.