Stanisław PstrokońskiinBusuu TechThe Busuu Placement Test, Part III: Selecting an IRT modelBy now, I might have gotten you interested in Item Response Theory, but before you go on and use it, you want to know a bit more detail…13 min read·Jul 4, 2023----
Stanisław PstrokońskiinBusuu TechThe Busuu Placement Test, Part II: how do you measure task difficulty and learner ability at the…The Busuu Placement Test uses Computerised Adaptive Testing (as explained in a previous article) based on a machine learning model known as…12 min read·Jun 5, 2023----
Stanisław PstrokońskiinBusuu TechThe Busuu Placement Test, Part I: Computerised Adaptive Testing (CAT)Imagine that you had to assess somebody’s language level in as short a test as possible. How would you do it?10 min read·May 16, 2023--2--2