Ricco’s law

the principle that visual threshold is a function of the intensity of a visual image and its area on the fovea. Compare Piper’s law. [Annibale Ricco (1844–1919), Italian astrophysicist]

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Psychology term of the day

February 18th 2025

underachiever

n. a person who consistently achieves below his or her demonstrated capacity. Underachievement may be specific to an area of study or work, or it may be general. It is more prevalent among boys than girls and is quite common in bright and even gifted children. It is also prevalent among average students and children with special needs. Compare overachiever.