Evidence map›Paper›PMID 41488595›Full record

ArticleThe journal of political economy2025

A Study of the Microdynamics of Early-Childhood Learning.

James Heckman, Jin Zhou

Abstract read
In one paragraph

Article in The journal of political economy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

James HeckmanUniversity of Chicago.
Jin ZhouCity University of Hong Kong.

Funding

Integrated Lifecycle Approach to the Development of Health & Other CapabilitiesR37HD065072 · NICHD · NATIONAL BUREAU OF ECONOMIC RESEARCH · PI HECKMAN, JAMES J · 2010 to 2019
$6.1M
Synthesizing and Interpreting the Evidence on Early InterventionsR01HD054702 · NICHD · NATIONAL BUREAU OF ECONOMIC RESEARCH · PI HECKMAN, JAMES J · 2007 to 2011
$3.1M
Synthesizing, Interpreting, and Extrapolating Interventions to Foster Human DevelopmentR01HD103666 · NICHD · NATIONAL BUREAU OF ECONOMIC RESEARCH · PI JAMES J HECKMAN · 2021 to 2026
$3.0M
Developing Predictors of Health Outcomes in Childhood and AdolescenceR01HD107079 · NICHD · UNIVERSITY OF CHICAGO · PI STEPHANIE M. CARLSON, JAMES J HECKMAN · 2023 to 2026
$2.3M
NICHD NIH HHS R01 HD054702NICHD NIH HHS R01 HD103666NICHD NIH HHS R01 HD107079NICHD NIH HHS R37 HD065072
6 · The paper itself

Abstract

This paper investigates the weekly evolution of skills as measured by unique data from a widely-emulated early childhood home-visiting program in rural China. The design of the study avoids input endogeneity issues and lack of comparable measures of skills that plague previous studies. Skills, nominally classified as the same, in fact, do not appear to share a common unit scale across levels. They are produced by skill-lifecycle-stage-specific learning processes. A novel dynamic stochastic skill production model for multiple skills is developed, aligning with empirical evidence. The model explains the "fadeout" of measures of learning through forgetting or depreciation of skills.

Identifiers

PMID41488595
PMCPMC12758908

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.