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W3 R79: source provenance and original nonseparable covariance figures

Research evidence ledger · 20 October 2026 · fully synthetic, Gaussian and unreleased

Numerical verification, not statistical qualification

The original and independent numerical audits validate computational reproduction of source data and reference arrays, not general nominal-90% coverage. No real sensor, non-Gaussian, dropout or MNAR data are tested. W3 science blocker #289 and missingness blocker #296 remain OPEN, version 1.2 release HOLD.

Figure 1: generating-law nonseparable covariance

Analytic R79 time-dependent Gaussian cross-coordinate correlation and marginal trial SD

Read the R79 scientific article. R79 uses within-trial base Gaussian temporal AR1 rho .72, true trial marginal SD .04(.70+.60t), and explicitly varies within-time coordinate correlation q(t)=.15+.65t. In the repeated-trial participant configuration, dimension-specific subject latent normals have fixed coordinate correlation .45. All generating-law parameters are simulation known only.

Figure 2: source-level whole-slope-function inclusion

Original R79 complete-grid truth inclusion against simulator Gaussian benchmark

The denominator for every plotted condition is 32 genuinely new independent primitive generating blocks, not the 256 factorial cases and not 999 conditional Gaussian/wild draws.

Predictor-dependent variance Curves: 2 anchors Curves: 16 anchors Participants: 2 anchors Participants: 16 anchors
Unmodified W3 wild-HC1 1/32 19/32 6/32 21/32
Data-estimated HC3 Gaussian 3/32 25/32 11/32 23/32
Fixed HC3 regularization λ=.25 19/32 29/32 17/32 28/32
Fixed HC3 regularization λ=.50 24/32 31/32 20/32 28/32
Source-known Gaussian benchmark 26/32 30/32 27/32 27/32

The constant-variance falsification cells are also part of the original complete archive. With only two independent x=±4 extremes, curves HC3, λ=.25, λ=.50 and source-known benchmark include the truth in 16, 21, 25 and 28 of 32 cases, respectively. Corresponding repeated-participant counts are 20, 26, 26 and 30. With sixteen anchors, the source-aggregated counts remain available for both laws; no result-dependent source case exclusion was made.

Figure 3: source-wise marginal-SE lower tails and Gaussian critical

R79 source mean HC3 and fixed lambda Gaussian candidate uncertainty diagnostics

For the primary heteroskedastic two independent extreme units condition, the source-averaged within-grid 10th percentile of candidate marginal estimated/true slope SE ratios and the source-averaged Gaussian reference criticals are:

Condition HC3 Fixed λ=.25 Fixed λ=.50
Curves estimated/true marginal SE low tail 0.460424 0.582731 0.650528
Participants estimated/true marginal SE low tail 0.508616 0.542073 0.567355
Curves estimated Gaussian critical 2.711283 2.949399 3.066560
Participants estimated Gaussian critical 2.255382 2.829268 2.998212

The known Gaussian true slope SE is not available for actual recording datasets and is used here only for diagnosis. The two frozen regularization strengths change both the estimated marginal SE and the correlation/critical-value reference. These plots cannot be interpreted as a universal confidence-band algorithm comparison.

Original and independent source numerical evidence

Evidence Verified provenance
Prospective experiment R79 draft PR #411; frozen source-law and estimator specifications
Original scientific source job R79 workflow #39483619384: 12/12 scientific jobs passed
Immutable original source archive Artifact #12292856827
Pinned original simulation checkout 15bcbe55d42579c9788cd94b9516850b6eabc1b2
Mandatory separately coded replay R79-A draft PR #412
Independent source audit workflow #39483939543: 4/4 dedicated jobs passed
Independent audit report Artifact #12291983970
Original source case success/failure 256/256 complete; zero numerical refusals
True independent study source denominator 32 new generating blocks per design/support/variance cell
Original conditional maximum-statistic archive 256 cases × 5 references × 999 draws = 1,278,720, independently reconstructed
Whole-grid inclusion outcome Binary inclusion of all 31×2 generating functional slope coordinates, one event per independent source dataset
Five original inferential references Original wild-HC1; estimated HC3 Gaussian; fixed source-observable λ=.25 and λ=.50; simulator-known Gaussian joint source law
Scientific qualification No general 90% simultaneous confidence validity; no real-gaze/non-Gaussian/MNAR evidence; no public inference API

The SVG assets are vector re-expressions of the independently audited original simulation summary and analytic generating law, not newly estimated model fits. Because R78 and R79 were generated using different primitive source blocks, any across-study figure comparisons must not be misrepresented as paired source effects.

Full R79 article · Methods companion on two-dimensional gaze covariance · Previous R77–R78 ledger