Two synthetic cohort-retention curves
Compare units at the same age after a stable entry event. Curve differences are descriptive until composition, maturity, and outcome rules are aligned.
Reference & Evidence
Source: Author's synthetic cohort model grounded in Ascarza, Iyengar and Schleicher (2016) and Steinhoff et al. (2025). Values show age-relative retention for two illustrative cohorts; they are not company data or a benchmark.
Each line is a claim from the register this journal publishes against, resolved from the register at build time.
- B Cohort analysis groups units by a declared entry event and compares outcomes at the same relative age Author framework grounded in AIS16-C1, AIS16-C2, and PV1R-C4 ·
G02-OWN-C1 - B A cohort comparison keeps grain, entry event, composition, age, outcome, denominator, and maturity visible Author record design ·
G02-OWN-C2 - B Retention at a declared age is units remaining at that age divided by eligible units at entry Author formula ·
G02-OWN-C3
Grades: A, verified against the printed page of the primary source · B, primary source, text layer only · C, authoritative secondary · D, reported.
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