feat(psychometric): recover Driver p.16 T0VARstd after positive T0VAR - #205
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Map free first-occasion T0VAR through 2017-era summary.ctsemFit.R as solve(sqrt(diag(T0VAR))) %&% T0VAR after strictly positive p_0. OpenMx %&% is t(A)%*%B%*%A; the default ridge is 0. The scalar correlation is p_0/p_0 = 1. Refuse unstandardised T0VAR, T0TDPREDEFFECTstd, and addedT0TIPREDVAR. Free T0VAR does not require a<0.
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Eight new draft PRs opened in the Driver-recovery psychometric series since the last snapshot. Protected-main SHA and non-draft count (70) are unchanged -- no new mergeable work landed, this is a pure register refresh.
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* docs: add live product technical gap baseline * docs: refresh live delivery baseline * docs: record psychometric draft state * docs: refresh temporal and image delivery queue * docs: record Unicode identity PR in gap baseline * docs: refresh buyer gap baseline for psychometric PR * docs: refresh baseline for branch coverage repair * docs: refresh baseline with current PR heads * docs: record validation claim promotion head * docs: refresh live PR baseline * docs: bind baseline to refresh head * docs: refresh gap baseline current heads * docs: refresh live pull request evidence * docs: expand TEPP completion gaps and issue roadmap * docs: add product and technical gap baseline * docs: normalize buyer gap maturity * docs: remove duplicate gap baseline index entry * docs(gap): refresh live queue snapshot * docs(gap): split executable product capabilities * docs(gap): align queue snapshot timestamp * docs(gap): normalize maturity and authority fields * docs: refresh live pull request gap evidence * docs: record hot partition readiness gap * docs: refresh live product gap snapshot * docs: route Strix gap evidence to canonical owner * docs: link exact Strix failure records * docs: bound Strix evidence to public records * docs(gaps): refresh live PR snapshot * docs(gaps): bind snapshot to refreshed head * docs: refresh live buyer-gap baseline * docs: refresh live PR head register * docs: require dated exact-head gap baseline Refresh the live 2026-08-23 GitHub inventory, add a structure validator that rejects queued-Checks-as-shipped claims, and cover it with quality tests. PR #164 remains the single gap-baseline authority. * docs: drop closed duplicate #179 from live register Refresh the exact-head inventory to 93 open PRs after closing the duplicate gap-baseline snapshot. PR #164 remains the single authority. * docs: bind gap heads to the live 95-PR register Refresh the exact-head inventory to 2026-08-23T13:31:34Z and set each buyer-gap current head SHA to that snapshot, including #164, #48, #50, #63, and #157. Queued Checks remain not implemented-main. * fix(docs): honor negated queued-Checks wording in the gap validator The promotion guard treated any same-line 'queued Checks'...'implemented-main' window as a shipped claim, so correct negation failed and a wrapped affirmative claim could evade. Require an un-negated match, including across a line break. * docs: refresh 96-PR exact-head gap register Bind the live 2026-08-23T13:57:34Z inventory, including #49 extra-lag underflow coverage and hourly #180/#164 repairs. Buyer-gap current heads match that snapshot. Queued Checks are not implemented-main. * docs: replace Buyer language in the live gap register TEPP is not a purchase catalog. The gap baseline, validator, and CHANGELOG now name operator-visible gaps and operator-gap closure evidence. * docs: refresh 96-PR exact-head gap register after #49 90b08bb Bind GAP current-head SHA prefixes to the 2026-08-23T14:08:41Z live inventory, including #49 extra-process lag underflow and #164 8b78797. Queued Checks remain not implemented-main. * docs: refresh 98-PR exact-head operator-gap register Snapshot 2026-08-23T14:52:16Z. GAP-015 records this register's prior exact head 33bf824. TEPP remains an operator-gap register, not a purchase catalog. * docs: refresh 97-PR exact-head gap register after stacked #191 Drop closed stacked #191, bind GAP current-head SHAs to the 2026-08-23T15:07:33Z REST inventory, and keep queued Checks off implemented-main. * docs: refresh 97-PR exact-head gap register after #49 1e3e2eb Bind GAP current-head SHAs to the 2026-08-23T15:57:48Z REST inventory, including #49 exp/expm1 overflow rewrites. Queued Checks remain off implemented-main. * docs: refresh 99-PR exact-head gap register after stacked #193/#194 Bind GAP current-head SHAs to the 2026-08-23T16:52:27Z REST inventory. #49 nightly 1701/1702 on 1e3e2eb is logged, not treated as implemented-main. Queued Checks remain off protected-main. * docs: refresh 101-PR exact-head gap register after #49 dd6cf43 Bind GAP current-head SHAs to the 2026-08-23T17:59:26Z REST inventory, including unique-fold coverage on #49 and stacked drafts #195/#196. Queued Checks remain off implemented-main. * fix(docs): require promotion-denial wording for queued-Checks guard An unrelated `not` in `queued Checks are not required; this PR is implemented-main` was treated as negation. Only never/do not/does not/ cannot/must not plus promote/treat/make/mean licenses the span. * docs: refresh 103-PR exact-head gap register after stacked #197/#198 Bind GAP current-head SHAs to the 2026-08-23T18:48:36Z REST inventory. #49 unique-fold nightly is green on dd6cf43 and is not implemented-main. Queued Checks remain off protected-main. * docs: refresh 105-PR exact-head gap register after stacked #199/#200 Bind GAP current-head SHAs to the 2026-08-23T19:48:22Z REST inventory. #49 unique-fold nightly remains green on dd6cf43 and is not implemented-main. Queued Checks remain off protected-main. * docs: refresh 106-PR exact-head gap register after #201 span units Bind GAP-005 to #201 5344729 as a first span-unit slice only, not concept alignment and not implemented-main. Queued Checks remain off protected-main. * docs: refresh 109-PR exact-head gap register after #201 6afd650 Bind GAP-005 to the RFC 5646-once citation head and include stacked drafts #202–#204. Queued Checks remain off implemented-main. * fix(docs): deny queued-Checks promotion by governed negation Replace the fixed-window denial regex with sentence-scoped negation governance: a claim passes only when a negation cue directly governs a promotion verb inside the same sentence and no adversative conjunction separates that pair from the maturity assertion. Honest wordings whose negation precedes the phrase are accepted, while unrelated negated clauses joined by 'but' can no longer license an implemented-main claim. * docs: refresh 117-PR exact-head gap register after #205-#212 Eight new draft PRs opened in the Driver-recovery psychometric series since the last snapshot. Protected-main SHA and non-draft count (70) are unchanged -- no new mergeable work landed, this is a pure register refresh. * docs: refresh live product gap evidence * docs(changelog): align gap-baseline snapshot entry with committed register The Changed entry still described the predecessor 2026-08-23T21:46:37Z snapshot (109 open / 39 drafts) while the committed baseline document records the refreshed 2026-08-24T05:41:54Z snapshot (118 open / 48 drafts). Align the changelog narrative with the register the validator enforces so the exact-head evidence stays internally consistent. --------- Co-authored-by: seonghobae <seonghobae@users.noreply.github.com> Co-authored-by: opencode-agent <agent@contextualwisdomlab.dev>
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Stacked on #204 (
b8b266d) / #202 (a7ce1a0) / #200 (8f42947) / #199 (7a476ed) / #198 (52a9b4c) / #196 (1cb91b4) / #194 (471b115) / #192 (1690c7b) / #190 (adb0bc6) / #189 (0836c35) / #188 (444304d) / #187 (6afd048) / #185 (69ffec6) / #184 (6b93147) / #183 (c10097be) / #182 (2d4d6bf) / #181 (542806b) / #49 (6f95142). ADR 0005 executable slice stays insidepsychometric_core. This is not a second invariance crate and does not recreate #78 or #80.psychometric_corerecovers the Driver, Oud, and Voelkle (2017, Table 2, p. 12T0VAR; p. 16T0VARstd; footnote 4; 2017-era ctsemsummary.ctsemFit.R; JSS PDF re-opened 2026-08-23T22:06Z from https://www.jstatsoft.org/index.php/jss/article/download/v077i05/1104) scalar standardised first-occasion latent variance. Table 2 namesT0VARthe latent process initial variance/covariance. Page 16 prints standardised matrices with the suffixstdwhen appropriate. The 2017-erasummary.ctsemFit.RformsT0VARstdassolve(sqrt(diag(T0VAR))) %&% T0VARwhenverbose = TRUE. OpenMx%&%is the quadratic formt(A) %*% B %*% A. The defaultridging = FALSEadds 0, not0.0001; that ridge is a numerical hack and is not this exact map. The scalar correlation isp_0 / p_0 = 1after strictly positive freeT0VAR. Form strictly positivep_0first, then1 / √p_0, then(1 / √p_0) p_0 (1 / √p_0).T0VARis defined for a zero first-occasion variance; standardisedT0VARis not.p_0has no positive SD and fails closed.T0is an event-time occasion, so a non-event clock fails closed. FreeT0VARdoes not require stablea < 0.p_0recover the same 1.T0TDPREDEFFECTstdt0_m · √v / √p_0depends onp_0and is not this correlation.addedT0TIPREDVARt0_b² vis extra TI variance, not this correlation.TRAITVARis not the standardisation variance.Still not a Kalman filter, not a matrix
expm, not ESEM estimation, not DSEM, and not ctsem estimation. Meredith (1993) remains unread (Unpaywall 2026-08-24T06:36Z:is_oa: false; title Measurement Invariance, Factor Analysis and Factorial Invariance). Mislevy (1991, Psychometrika, 56, 177–196) remains unread (Unpaywall 2026-08-24T06:36Z:is_oa: false; title Randomization-Based Inference about Latent Variables from Complex Samples).Do not merge, self-approve, or request Copilot.