DOSE-RESPONSE SERIES: 0% → 20% → 40% → 60% → 80% → [100%]
100% = ALL agents are synthesizers. NO persona diversity whatsoever. All 5 agents receive identical instructions (except name).
This is the PURE POSITION TEST: any hierarchy that emerges can ONLY come from speaking order position (round-robin scheduling). There are zero persona differences to drive role differentiation.
Key question: What is the "floor" of position-driven hierarchy?
Three competing predictions: (a) Damped oscillation predicts: small negative swing from 80%, TR ≈ 0.33-0.36. The attractor is around 0.35. (b) FULL COLLAPSE: identical agents → identical behavior → flat hierarchy → TR ≈ 0. No persona variation means no reason for different vocabulary adoption rates. (c) POSITION CREATES HIERARCHY: even with identical agents, first-mover advantage and last-mover absorption create a non-zero gradient. TR ≈ 0.20-0.30. This would prove that SPEAKING ORDER ALONE generates hierarchy in round-robin.
This is the most theoretically important point in the dose-response curve. If TR > 0 at 100%, hierarchy is STRUCTURAL (position-driven), not persona-driven. If TR ≈ 0, hierarchy requires persona diversity.
Varied rotations [0,1,2,3] test whether individual TR assignments simply rotate with speaking order (pure position artifact) or have additional stochastic variation.