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W3 R80 Student-t5 functional inference — independently audited figure ledger

Scientific evidence and SVG provenance · 20 October 2026 · research only

No general 90% calibration

Source arrays and reference maxima have been independently numerically reconstructed under a known synthetic Student-t5 unit-level scale-mixture law. No observed-data estimator has earned nominal-90% simultaneous calibration, no authentic eye tracking, irregular sampling, dropout or MNAR study is claimed. W3 issues #289 and #296 remain open and eyetrajectoriespy 1.2 remains on release HOLD.

Figure 1: full 31 × 2 functional slope truth inclusion

Original R80 whole-function Student-t5 source coverage across five references and two levels of influential unit support

Each plotted cell evaluates 32 independent newly generated primitive source datasets. The 256 total factorial source-condition cases include repeated experimental configurations from the same generating blocks; 999 reference draws per source and candidate do not add independent source replications.

Predictor-dependent source variance Curves: 2 extremes Curves: 16 extremes Participants: 2 extremes Participants: 16 extremes
Unchanged wild-HC1 3/32 20/32 7/32 26/32
Source-observed HC3 Gaussian 5/32 28/32 17/32 29/32
Fixed HC3 λ=.25 Gaussian 19/32 31/32 22/32 29/32
Fixed HC3 λ=.50 Gaussian 23/32 32/32 24/32 32/32
Source-known independent-unit Student-t5 mixture 29/32 30/32 28/32 30/32

A whole-slope truth inclusion means all 62 coordinates fall within the source-specific simultaneous band. Nominal .90 is the reference quantile used, not a validated general coverage frequency. In the primary two-anchor heteroskedastic condition, fixed λ=.50 yields only 23/32 (71.9%) independent curve and 24/32 (75%) repeated-participant whole-band truth inclusions.

The prespecified constant-unit-variance two-extreme controls gave baseline HC3 / λ=.25 / λ=.50 / source-known t5 oracle 17/32,26/32,28/32,27/32 for independent curves and 26/32,28/32,28/32,28/32 for repeated participants. All remaining source cases are preserved in the immutable archive.

Figure 2: R79 Gaussian vs R80 Student-t5 sources

R79 Gaussian and R80 heavy-tailed Student-t5 unpaired source experiment comparison

This chart draws unpaired separate-source contrasts: R79 and R80 used different newly generated original datasets, so the counts are not source-paired treatment changes. Under two extreme high-noise predictor units, curves R79→R80 estimated HC3 3→5, λ=.25 19→19, λ=.50 24→23, simulator-known law 26→29; participants HC3 11→17, λ=.25 17→22, λ=.50 20→24, source-known law 27→28. The source-known reference also changes law from Gaussian to independent-unit Student-t5.

Figure 3: estimated marginal scale and Gaussian reference criticals

R80 original source-specific HC3 and regularized marginal standard-error lower tails and Gaussian maximum criticals

For the primary two-anchor predictor-dependent noise case, source means across each source-specific 10th percentile of estimated-to-simulation-known true slope marginal standard error and source-averaged estimated Gaussian maximum-statistic reference criticals:

Source-averaged diagnostic HC3 Gaussian Frozen λ=.25 Frozen λ=.50
Curves: lower-tail estimated/true SE 0.425916 0.557491 0.626236
Participants: lower-tail estimated/true SE 0.492913 0.526406 0.547119
Curves: estimated Gaussian 90% critical 2.711679 2.950893 3.055342
Participants: estimated Gaussian 90% critical 2.248108 2.818882 2.999366

The simulator-known Student-t5 maximum-statistic critical averages 3.322299 for independent curves and 2.456110 for repeated participants in the adverse condition. Directly comparing criticals without their different marginal SE scales or reference distributions is insufficient to assess coverage. The true SE ratio denominator and generating-tail parameters are not available in actual sensor recordings.

Original immutable source and independently implemented audit

Evidence contract R80 verification
Prospective source protocol Draft R80 PR #414, frozen source seeds and methods before outcomes
Original source workflow R80 run #39487449656, 12/12 scientific jobs passed
Immutable original source archive Artifact #12293409344
Original source scientific checkout c3c590788a8d126c73e59d7e0e799d6f39f0d655
Independently implemented original-source audit Draft R80-A PR #415
Independent original-archive audit R80-A run #39487811433, 4/4 dedicated audit jobs passed
Separately retained independent audit report Artifact #12294940973
Completed/attempted source cases 256/256 complete, 0 refusals
Independently generated primitive source blocks 32 per design/support/variance condition, paired across source conditions
Original conditional reference maximum values 256 × 5 × 999 = 1,278,720, all independently replayed
Generating innovation Independent-unit radial Student-t5, one scaled chi-square factor shared across times, coordinates and participant trials
Conditional spatial-temporal Gaussian law Trial AR1 rho .72, time-varying trial SD .04(.70+.60t), coordinate correlation q(t)=.15+.65t, participant shared latent coordinate correlation .45
Known reference construction Unit-specific Student-t5 mixture conditional on original X and true unit scales; not the earlier known-Gaussian reference
Candidate references Original package wild-HC1, residual HC3 Gaussian and two frozen positive-definite covariance candidates λ=.25/.50
Product release qualification None. W3 #289/#296 open; stable release 1.1.0, protected-main inference code, unreleased 1.2 and PyPI unchanged

Independent numerical agreement on source arrays, raw maxima, criticals, full-grid inclusion and SHA256 establishes reproducibility for the specified synthetic data-generating design. It does not establish general nominal-90% inference under other heavy-tailed families, skewed contamination, irregular or response-dependent missing data.

Read the R80 research article · Methods companion · Previous R79 evidence ledger