The adaptive mode showed a progressive per-question learning-delta increase across the session (from Δ = 3.16 on Q1 to Δ = 19.97 on Q9), suggesting a warm-up effect as participants learned the system¶

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? In the adaptive condition, mean per-question learning delta rose progressively across the session, from Δ = 3.16 on Q1 to Δ = 19.97 on Q9. → Alexandre Clin Deffarges 2026

Evidence¶

Alexandre Clin Deffarges 2026¶

Alexandre Clin Deffarges, Nataliya Kosmyna, and Pattie Maes. (2026). Socrates went Nuclear: Comparing Interaction Strategies for AI systems in a Learning Context using Brain Sensing. arXiv preprint arXiv:2609.00584. https://arxiv.org/abs/2609.00584 doi:10.48550/arxiv.2609.00584

q2 · i? · causal · r2

Per-question analysis of learning delta by mode across the ten training questions. The Full condition achieved the highest delta on most questions (Q1 to Q7), with strong gains on Q4 (Δ= 31.53) and Q7 (Δ= 27.76), while the Socratic mode exhibited more variable performance.

"The Adaptive mode showed a progressive increase in delta across the session (from Δ= 3.16 on Q1 to Δ= 19.97on Q9), suggesting that participants benefited increasingly from the adaptive mode as they got to understand the system."

Discussion¶

Related Claims¶

• Intelligent tutoring systems improve achievement over non-individualised instruction — the general claim this finding bears on, with the studies behind it
• In an immediate post-test design, participants with an unrestricted chatbot achieved significantly higher learning deltas than participants with a Socratic chatbot (d = 0.80) or an EEG-adaptive exercise system (d = 0.85) — related
• The EEG-adaptive exercise condition produced significantly higher cognitive engagement during training than the unrestricted chatbot condition (p = .018), and was the only condition above the 0.5 baseline — related
• Efficiency in the work curve is conditioned by factors beyond fatigue proper: practice, adaptation, preparedness, warming up, spurts, voluntary effort, ennui, and diurnal rhythms (Offner) — related