External to Hirsch’s corpus. This work was selected by an editorial review for D2; Hirsch did not cite it in the ten books indexed here. Its zero occurrence, book, and load counts are intentional. No corpus occurrence has been inferred or created.
Identity review: Codex multi-agent D2 evidence audit; not human-signed · 2026-08-24
The full Johns Hopkins repository report was checked for authorship, design, sample retention, implementation classifications and pooled reading comparisons.
Access checked: full text read · 2026-08-24 · open checked access point
Full report read from the Johns Hopkins repository.
Independence category: independent A Johns Hopkins/CRESPAR evaluation conducted outside Hirsch and CKF. It is an observational matched-school programme evaluation, not a randomized independent replication; implementation classifications materially affect the reported comparison.
Core Knowledge Curriculum: Five-Year Analysis of Implementation and Effects in Five Maryland Schools · single work
Review authority: Codex multi-agent D2 evidence audit; not human-signed
Mac Iver, M. A., Stringfield, S., & McHugh, B. (2000). Core Knowledge curriculum: Five-year analysis of implementation and effects in five Maryland schools. CRESPAR Report 50.
Full five-year report selected directly for D2. It is kept separate from Hirsch's unresolved generic 1996 Johns Hopkins citation in S1356.
Review state: full text read
Mac Iver, Stringfield and McHugh 2000 Maryland five-year evaluation · qualifies A4, qualifies A7, qualifies A8
implementation sensitive matched comparison
full open report; primary report read — Full report, retention, pooled and implementation-excluded comparisons
external university evaluation
External Johns Hopkins evaluation of CK schools; evaluator independence does not remove programme and implementation selection.
That implementation quality materially changes the apparent longitudinal result in a matched-school evaluation.
A clean causal CK effect or a stable policy-scale effect.
Open limitation: Pooled three-year reading gains favoured controls; the favourable CK result appears after excluding the failed-implementation pair amid substantial attrition.
No occurrence is shown because Hirsch did not cite this work in the ten-book corpus. The dossier appraisal above records why the editorial layer selected it.