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A professor compared differences in class grades between students in their freshman, sophomore, junior, and senior...

A professor compared differences in class grades between students in their freshman, sophomore, junior, and senior years of college. If different participants were in each group, then what type of statistical design is appropriate for this study?

a two-independent-sample t test

a one-way between-subjects ANOVA

a two-way between-subjects ANOVA

both A and B

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Answer #1

correct option is A:

a one-way between-subjects ANOVA

(since subjects are different and only one independent variable (type of class) is there)

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