Science Research Associates (SRA), founded by Lyle Spencer in 1938, was a Chicago-based publisher of educational materials and schoolroom reading comprehension products. The company was acquired by McGraw-Hill Education in the early 2000s.

History

The company was founded in 1938. In 1950, Donald Henry Parker developed his multilevel reading product. In 1955, Parker proposed the product to Science Research Associates.

In 1957,

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