Guest

plateau effect JUST WRITTEN FOR YOU

/ˈplæt.oʊ ˈɛf.ɛkt/ · plat·eau ef·fect
noun
  1. A period during which improvement, growth, or performance levels off after a prior increase. After months of rapid weight loss, she encountered a plateau effect and her scale readings stopped changing.
  2. In psychology or learning theory, the phenomenon where repeated exposure to a stimulus yields diminishing returns in response or skill acquisition. The plateau effect in language learning means that after initial gains, students often make little progress despite continued study.
Did you know? The phrase 'plateau effect' was popularized in the 1960s by aerospace engineers describing how pilot training gains would level off, and it was later adopted by psychologists studying learning curves.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 16, 2026