Suppose a mathematics education researcher wanted to know if in class activities

Question

Suppose a mathematics education researcher wanted to know if in class activities improved students’ learning compared to traditional lecture only. 28 students were paired with 28 other students with similar GPA, Year in school, and academic major. All were randomly selected from the current MSU student population. One student from each pair was randomly assigned to either the Group Activities with Some Lecture class or the Lecture Only class of M121 (College Algebra). At the end of the semester, students’ final scores were recorded and teaching methods were compared.

TRUE or FALSE: The sample size for this study is 28 pairs.

Explanation / Answer

The sample size for this study is 56 pairs. This statement is FALSE. There were 28 pairs of students with other 28 pairs. Sample size is n1+n2. That is, 28+28=56

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