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A researcher wants to compare the effectiveness of two online learning platforms by assigning students to them based on their prior GPA (e.g., top 25%, next 25%, etc.). This experimental design is intended to minimize the confounding effect of prior academic ability. What is this design called?
A researcher wants to compare the effectiveness of two online learning platforms by assigning students to them based on their prior GPA (e.g., top 25%, next 25%, etc.). This experimental design is intended to minimize the confounding effect of prior academic ability. What is this design called?