Elaborated error feedback, a crucial component of Mastery-Based Learning (MBL), often fails to be effective, particularly for those who require it most

Ammar Merhbi:

Digital learning promises precision: personalized pathways, mastery checks, and detailed feedback to help students close gaps and build lasting understanding. But what happens when students simply ignore that feedback?

new study dives into this hidden flaw inside a real-world  mastery-based learning system , MasteryX, an adaptive German grammar app for secondary students. Its design will feel familiar to anyone who’s used systems like Khan Academy, ALEKS, or Duolingo:

  • Students move through grammar courses structured by levels.
  • To advance, they must pass formative mastery assessments (usually 80% or higher).
  • After each test, the app shows them exactly what they got wrong and provides elaborated error feedback: what the right answer was, why they were wrong, and how to avoid the mistake.

Students can choose to read this feedback or skip it.


e = get, head

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