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A phone with colored pencils
In the news

Updated on Apr. 9, 2026

8 minute read

Did Smartphones Cause Global Test Score Declines?

Emily Oster, PhD

One kid teaching 4 other kids

Updated on Mar. 4, 2026

2 minute read

What’s the Data Behind Dual Language Immersion Programs?

Emily Oster, PhD

kids sitting in a class room and using mobile
In the news

Updated on Nov. 6, 2025

11 minute read

What the Data Says About Kids, Phones, and Social Media

Emily Oster, PhD

Kids in school looking at tabs.

Updated on Oct. 16, 2025

7 minute read

Are Classroom Screens Good for Learning?

Emily Oster, PhD

kids standing and wearing school uniforms

Updated on Oct. 14, 2025

2 minute read

Are School Uniforms a Good Idea?

Emily Oster, PhD

Kids in a classroom play with Montessori-style toys.

Updated on Oct. 14, 2025

9 minute read

Is Montessori School Better?

Emily Oster, PhD

Kids reading in a classroom.

Updated on Sep. 19, 2025

8 minute read

Do Classroom Rewards Improve Behavior?

Emily Oster, PhD

A teacher teaching kindergarten kids in a classroom.

Updated on Sep. 16, 2025

9 minute read

Has Kindergarten Gotten More Academic?

Emily Oster, PhD

Kids writing in school.

Updated on Aug. 8, 2025

9 minute read

Why We Still Need Test Score Data

Emily Oster, PhD

Four children smiling and jumping with hands raised into the air.

Updated on Apr. 13, 2025

8 minute read

What Does Matter for Childhood Outcomes?

Emily Oster, PhD

Twin kids sitting on a rock by the lake.

Updated on Apr. 9, 2025

3 minute read

Should I Put My Twins in Separate Classrooms?

Emily Oster, PhD

ParentData podcast art

Updated on Feb. 25, 2025

11 minute read

Kids, Screens, and Schools (Part One)

Emily Oster, PhD

ParentData podcast art

Updated on Feb. 25, 2025

22 minute read

Every Kid is a Math Kid

Emily Oster, PhD

Children doing crafts with teacher in class.

Updated on Feb. 18, 2025

9 minute read

Should I Redshirt My Kindergartener?

Emily Oster, PhD

Teen boys at school

Updated on Feb. 3, 2025

9 minute read

Why Adolescent Boys Are Struggling

Christopher Pepper

A teacher teaching kids in the classroom

Updated on Jan. 31, 2025

2 minute read

What’s the Data Behind Gifted and Talented Programs?

Emily Oster, PhD