有意差 (ゆういさ) comprises common On'yomi for "have," "meaning," and "difference." Misreadings such as ゆういさん (for 差) or ゆういざ (voicing 差) are incorrect pronunciations. In statistics, it signifies a difference that is unlikely to have occurred by random chance, suggesting a true effect.

有意差 (ゆういさ) は全て音読みです。差を「さん」と読んだり、濁音の「ざ」と読む誤りが多いです。統計学において、偶然とは考えにくい、意味のある違いがあることを指します。