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Teresa is examining the math aptitude of two separate classes of fourth and sixth graders. She hypothesizes that, by sixth grade, children have made a

Teresa is examining the math aptitude of two separate classes of fourth and sixth graders. She hypothesizes that, by sixth grade, children have made a significant leap in their math aptitude developmentally. If Teresa wants to determine whether the math aptitude scores differ across these two groups, which t test should she use? one sample independent samples paired sample repeated measures

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