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The Persistence of Early Childhood Maturity: International Evidence of Long-Run Age Effects

2006· article· en· 598 citations· W2066547796 on OpenAlex· 10.1093/qje/121.4.1437

Why is this work in the frame?

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

About CanadaIts subject is Canada, wherever its authors sit.

No Canadian affiliation. An affiliation-only frame — the usual design — would never have seen this work. It is one of the works that make the case for inverting the frame.

Machine scores (provisional)

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Opus teacher head0.021
GPT teacher head0.267
Teacher spread
0.247 · how far apart the two teachers sit on this one work
Validation status
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Abstract

A continuum of ages exists at school entry due to the use of a single school cutoff date—making the “oldest” children approximately 20 percent older than the “youngest” children. We provide substantial evidence that these initial maturity differences have long-lasting effects on student performance across OECD countries. In particular, the youngest members of each cohort score 4–12 percentiles lower than the oldest members in grade four and 2–9 percentiles lower in grade eight. In fact, data from Canada and the United States show that the youngest members of each cohort are even less likely to attend university.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

The record

Venue
The Quarterly Journal of Economics
Topic
School Choice and Performance
Field
Social Sciences
Canadian institutions
Funders
Keywords
Persistence (discontinuity)CohortMaturity (psychological)DemographyPercentileCutoffCohort studyPsychologyMedicineDevelopmental psychologyStatisticsSociologyMathematics
Has abstract in OpenAlex
yes