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