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As South Korea’s exclusive Lexile Express Test distributor, LEDDI will provide research-based tools to assess English reading ability, match students with appropriate texts, and monitor growth.
DURHAM, N.C. and SEOUL, South Korea, Oct. 30, 2026 /PRNewswire/ — MetaMetrics®, creator of the Lexile® Framework for Reading, and LEDDI Corporation, a Seoul-based educational technology company, announce an expanded partnership that establishes LEDDI as the exclusive authorized distributor of the Lexile Framework for Reading computer-adaptive and fixed-form Express Tests in South Korea.
LEDDI Corporation is dedicated to providing educators with innovative and easy-to-use tools for teaching English, with a focus on enhancing the educational experience. LEDDI is now the exclusive distributor of Lexile Express Tests in South Korea.
The expanded partnership builds on the companies’ existing collaboration to bring research-based reading measurement to English language learners across South Korea. Through the agreement, LEDDI will offer both components of the Lexile Framework: student reading measures and text complexity measures. Together, these capabilities enable educators to match students with reading materials in their optimal reading range, personalize instruction, and monitor reading growth over time.
As a distributor, LEDDI will offer a computer-adaptive version of the Lexile Express Test to efficiently assess students’ English reading ability and provide Lexile measures. LEDDI will also offer Lexile text measurement capabilities, allowing educators and content providers to determine the reading demands of instructional materials using the same developmental scale.
"Reliable, research-backed reading measurement is essential to helping English language learners build the skills they need to succeed," said Chris Minnich, CEO of MetaMetrics. "By bringing both sides of the Lexile scale together, LEDDI can help their partners support reading growth."
LEDDI’s comprehensive English literacy platform serves elementary students and educators and features more than 4,500 English-language books, AI-powered worksheets, reading assessments, and classroom management tools that streamline instruction and track student progress.
"Accurate assessment of Korean students’ reading abilities unlocks truly personalized learning, driving tangible progress in their English proficiency. Through LEDDI, educators can now provide students and parents with an easy-to-follow learning path for each student’s language development," said Kim Seung Kyu, CEO of LEDDI Corporation.
The Lexile Framework is an internationally recognized standard for reading measurement, with more than 40 million students receiving Lexile measures annually and more than 100 million pieces of content measured. The expanded partnership strengthens access to this global measurement infrastructure for English language learning in South Korea.
About MetaMetrics
MetaMetrics is the developer of the Lexile® Framework for Reading and the Quantile® Framework for Mathematics, the global standard for measuring student reading and math ability. For more than 40 years, MetaMetrics has partnered with educators, assessment providers, and governments to deliver scientifically rigorous measures that improve instruction and support meaningful growth. Lexile and Quantile measures are used in all 50 states and in more than 100 countries worldwide, helping nearly 40 million students annually understand and advance their academic achievement. Learn more at www.metametrics.com.
About LEDDI
LEDDI Corporation is dedicated to providing educators with innovative and easy-to-use tools for teaching English, with a focus on enhancing the educational experience. Through its flagship program, LEDDI, the company offers a personalized learning experience paired with rich, engaging content tailored to each student’s needs. To learn more about how LEDDI Corporation is redefining education, visit https://leddi.ai/.
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