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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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Decline_effect entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-05-04 and was most recently seen on 2026-05-04.
The decline effect may occur when scientific claims receive decreasing support over time. The term was first described by parapsychologist Joseph Banks Rhine in the 1930s to describe the disappearance of extrasensory perception (ESP) psychic experiments conducted by Rhine over time. More generally, Cronbach, in his review article "Beyond the two disciplines of scientific psychology" referred to the phenomenon as "generalizations decay." The term was once again used in a 2010 article by Jonah Lehrer published in The New Yorker.
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