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. a two-independent sample t test
b. a one-way between-subjects ANOVA
c. a two-way between-subjects ANOVA
d. both a two-independent sample t test and a one-way between-subjects ANOVA
Answer: B
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