Skip to main content
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Information Collection Notice
Trademark Concerns
reCAPTCHA Privacy
Terms of Service
reCAPTCHA Terms
Privacy Policy
Accessibility
Report a Bug
Data Request
Contact Us
Security
DMCA
© 1999–2026 Urban Dictionary ®
Mugs
Tees
Hoodies
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
Also known as the "sibling spillover effect", this effect describes how an older sibling's academic success or even a specific educational intervention they received positively influences their younger sibling's achievement, often through shared learning, role modeling, and increased academic engagement at home, particularly benefiting younger siblings in reading skills.
Text fits
Save
Cancel