urn:uuid:42bc7dd2-6cdd-5a55-b546-98a279b545d0 SocioLens — RO-LD07-05: Does post-training change what an LLM measures when it codes text? New versions of this research opportunity and changes to the claims it rests on. 2026-10-13T00:00:00Z SocioLens urn:uuid:fa1d4e01-e7ce-5b0e-a9cf-39867aef7af6 Research opportunity revised to v2: RO-LD07-05 — Does post-training change what an LLM measures when it codes text? 2026-10-13T00:00:00Z Literature check added: a second, deeper search for existing work, with its queries, new nearest work and limits. The question and verdict stand. urn:uuid:f77e0165-dbc6-58aa-a701-cfb0f28bdfbf New research opportunity: RO-LD07-05 — Does post-training change what an LLM measures when it codes text? 2026-10-12T00:00:00Z Holding base weights fixed, how much do instruction tuning, preference tuning and region-specific fine-tunes shift coding validity and downstream estimates on stance and attitude annotation tasks, and do the shifts track the fine-tune's target culture?