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) a two-independent-sample t test and a one-way between-subjects ANOVA

Question

Quizplus · Accepted Answer

A one-way between-subjects ANOVA is appropriate for this study because it involves comparing the means of multiple groups (freshman, sophomore, junior, and senior) with different participants in each group. This design allows for the testing of whether there are significant differences in the means of the groups while controlling for individual differences among participants. The other options (A, C, and D) are not appropriate because they involve comparisons between two groups or require a specific factor to be manipulated or measured.

A Professor Compared Differences in Class Grades Between Students in Their