Social Studies, 10.08.2021 18:40 Lalagrl

A school district is comparing two reading programs for high school students who are reading below grade level. Two schools with very similar student bodies are used to test the programs, with a different program being used at each school. Identify the threat to internal validity described in each scenario that might occur in this study.

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A school district is comparing two reading programs for high school students who are reading below g...