Evidence and limits
Finding: A structured pair-use protocol was associated with lower document quality and substantially lower document production than unstructured use. A cognitive framing intervention was associated with higher individual quality at the top of the distribution, subject to reported design limitations.
Impact: Watch protocol and framing interventions. Reject structure alone as evidence of better collaboration. No runtime change.
Boundary: This is a preprint with an AM/PM session confound, differential attrition, and LLM-grading sensitivity to document length. Next: can a preregistered, replicated field study show durable benefit without reducing throughput?
Flags: preprint; reported confounds; one organization
Record State: Catalog review recorded; not a performance endorsement
What was reviewed: Structure and relevance screened; not a full evaluation