In a brief introduction to item response theory and basic ideas behind much of psychometrics. I describe how IRT is an approach for relating items to a construct of interest. I use happiness as a fun example and fail at drawing emojis.
I look forward to expanding on this video in the future.

A few great texts on IRT can be found here:
The Theory and Practice of Item Response Theory ([ Ссылка ])
Item Response Theory for Psychologists ([ Ссылка ])
The Basics of Item Response Theory Using R ([ Ссылка ])

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