項こう目もく応おう答とう理り論ろん

noun

item response theory; IRT

A mathematical framework used in psychometrics and educational measurement to model the relationship between latent traits and item responses.

• 項こう目もく応おう答とう理り論ろんは、テストの難なん易い度どと受じゅ験けん者しゃの能のう力りょくを同どう時じに推すい定ていするのに使つかわれる。

  Item response theory is used to estimate test difficulty and examinee ability simultaneously.