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The effect of preschool quality on children's outcomes

Last registered on July 21, 2022
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Pre-Trial

Trial Information

General Information

Title
The effect of preschool quality on children's outcomes
RCT ID
AEARCTR-0009778
Initial registration date
July 20, 2022

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
July 21, 2022, 12:14 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Locations

Country
Japan
Region
Tokyo

Primary Investigator

Name
Makiko Nakamuro
Affiliation
Keio University
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Other Primary Investigator(s)

PI Name
Keiko Fujisawa
PI Affiliation
Keio University
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PI Name
Taiyo Fukai
PI Affiliation
Tsukuba University
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Additional Trial Information

Status
In development
Start date
2022-08-01
End date
2022-09-01
Keywords
Education
Additional Keywords
ECERS (Early Childhood Environment Rating Scale)
JEL code(s)
I22
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
We run a cluster-randomized experiment to evaluate a newly developed on-site consultancy programme to improve the quality of child care for 4- to 5-year-old children as measured with the ECERS (Early Childhood Environment Rating Scale). We cover all accredited child care centers in one of the local cities in Tokyo metropolitan areas, making 9 experimental group with 9 control group for comparison.
External Link(s)

Registration Citation

Citation
Fujisawa, Keiko, Taiyo Fukai and Makiko Nakamuro. 2022. "The effect of preschool quality on children's outcomes." AEA RCT Registry. July 21. https://doi.org/10.1257/rct.9778-1.0
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2022-08-01
Intervention End Date
2022-09-01

Primary Outcomes

Primary Outcomes (end points)
ECERS (Early Childhood Environment Rating Scale)
Kids infant developmental scale
SDQ
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We run a cluster-randomized experiment to evaluate a newly developed on-site consultancy programme to improve the quality of child care for 4- to 5-year-old children as measured with the ECERS (Early Childhood Environment Rating Scale). We cover all accredited child care centers in one of the local cities in Tokyo metropolitan areas, making 9 experimental group with 9 control group for comparison.
Experimental Design Details
Randomization Method
Randomization done in office by a computer
Randomization Unit
Childcare center
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
18
Sample size: planned number of observations
300 children
Sample size (or number of clusters) by treatment arms
9 treatments (150 children)
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
Keio University
IRB Approval Date
2020-07-25
IRB Approval Number
290
Analysis Plan

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials