Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The Education Longitudinal Study of 2002 (ELS:2002; https://nces.ed.gov/surveys/els2002/) is a study that is a part of the Education Longitudinal Study program. It is a longitudinal survey that...
data.gov
An official website of the GSA's Technology Transformation Services