Th e English Language Gains Test, published by National Geographic School Publishing, is a research-based, scientifi cally
valid, reliable, and fair measure of adolescents’ English language profi ciency. Th e English Language Gains Test was carefully
developed by experts, fi eld-tested for accuracy, and rigorously evaluated by third-party researchers to ensure adherence
to the highest standards of quality for student assessment. Th is summary is intended to support educators in their
understanding of the test’s purpose, its use with students, and the interpretation of test results.