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Sumner, G. C. – 1971
During the 1970-71 school year, the Grand Rapids, Michigan, School District had performance contracts for reading and math instruction with Alpha Learning Systems, Inc. (Alpha), Combined Motivation Education System, Inc. (CMES), and Westinghouse Learning Corporation (WLC). The programs of all three contractors featured contingency management and…
Descriptors: Achievement Gains, Case Studies, Data Collection, Educational Facilities