Suppose an instructor would like to compare the effectiveness between his online
ID: 3263500 • Letter: S
Question
Suppose an instructor would like to compare the effectiveness between his online class and his on campus class. He considers the class format to be the treatment, the students to be the experimental units (or subjects) and their final exam percentage to be the response. The final exam scores are recorded in the Summer 2016 term for the online class and in the Fall of 2016 for the on campus class. Students were unaware of the experiment and registered for the classes as usual. Suppose the following are results from the experiment: Provide a paragraph that summarizes your answers to the questions. 1. Are there any issues with the way the experiment is conducted? 2. What are some potential biases? 3. Was randomization used? 4. Overall, the results are posted above, do these values answer the instructors question? 5. What would be a better way to compare these two course formats?Explanation / Answer
Solution:
1. yes, there is issues with the way that the test conducted because the test is not equivalent for both the classes as the time given for the preparation is not equal for online class and in campus class.
2. Potential biases include difference in the preparation time and it looks like that the test is helpful for the online class as compared to the campus classes.
3. No, the randomization is not used because there is no random selection which can reduce the biases in the experiment.
4. Yes, these values answer instructor questions because these values show that the campus class got better result as compared to the online class with lower vale of standard deviation even with a larger sample.
5. A better way to compare these course formats is to conduct the test on the same data, so that there will be less biasing and result will be more accurate and correct.