Hypothesis
Heavier instructional scaffolding, a goal-context-constraints prompting template with iterative refinement and reflective guidance, would improve learning outcomes and metacognitive processes in AI-tutored learning over lighter or absent scaffolding.
What failed
Across 175 first-semester students split between full, light and no scaffolding in the same four-hour session, knowledge, critical thinking and reflective use all rose and cognitive load fell, but no significant differences appeared between scaffolding conditions and the conditions produced no significant interaction effects; only descriptive trends favoured the scaffolded groups on higher-order knowledge.
Broken assumption
More prompting scaffolding yields more learning in AI-supported sessions.
Why
The authors suggest short-term gains depend on how learners engage with the AI rather than on scaffolding intensity alone.
From the published paper: Melanou et al. Education Sciences, 2026. ↗CC BY