homework assignments. He creates these quizzes so that students receive immediate feedback about incorrect answers. He also allows them to take the quizzes more than once, so that they can improve their knowledge and their grade. He suspects that most of them look at the text or their notes while they take it, since there is no explicit
Dr. Wright has started using online quizzes as a way to provide more practice to his math students without adding more hours grading written homework assignments. He creates these quizzes so that students receive immediate feedback about incorrect answers. He also allows them to take the quizzes more than once, so that they can improve their knowledge and their grade. He suspects that most of them look at the text or their notes while they take it, since there is no explicit requirement that they not do this. He believes that doing the quizzes should improve test grades and he decides to analyze this data.
1. True or False? Dr. Wright’s null hypothesis is that quizzes will improve test grades.
2. What analysis should Dr. Wright use to determine whether quiz grades are positively associated with test grades?
- Independent samples t test
- Dependent samples t test
- ANOVA
Correlation
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