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Playing with Numbers: Bringing Statistics to Life in the Undergraduate Classroom
Unformatted Document Text:  Nordyke, Moulton and Nesbit  Page 16    do not want a statistically significant difference at this stage; if there is, you can discuss what this will implicate for the dependent samples test). Next, the pre-test and post test means for each group can be compared (within each group), through dependent sample t-tests, to see if drinking the Coca-Cola increased the pulse rate of the experimental group significantly. The control group is also tested pre and post to demonstrate that there should not be a statistically significant difference pre and post for this group. If there is, the implications can be explained. Student Feedback We have not yet developed a way to systematically analyze how the statistical analysis has improved student learning and satisfaction with our courses. We do have some crude measures though through student course evaluations and comments. For the same instructor teaching the same course, the addition of the statistical analysis project increased the mean student response and several important questions on the student evaluations. In addition, 78% of the students surveyed responded that they agreed or strongly agreed that the group project was helpful to understanding and comprehending the material. Of course these are not statistically valid comparisons as there were many factors that were not controlled for but they do offer an indication that the course improved with the addition of the project. We also each received several favorable student comments regarding the structure of the course. Student Evaluation of Teaching Question Mean Score Without* Mean Score With Project* The material and/or skills developed in this course will be useful in the future. 2.19 2.47 My instructor made the material interesting. 2.66 3.03 My instructor encourage students to participate in their learning 3.11 3.58 My instructor was effective at promoting productive class discussions 2.58 3.21 I learned a lot in this course. 2.75 3.09 Overall, I would rate the quality of instruction in this course as outstanding. 2.75 3.19 *Scores are recorded on a 4 point scale. (0 = Strongly Disagree, 4 = Strongly Agree)

Authors: Nordyke, Shane., Moulton, Stephanie. and Nesbit, Becky.
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Nordyke, Moulton and Nesbit 
Page 16 
 
do not want a statistically significant difference at this stage; if there is, you can discuss what this
will implicate for the dependent samples test). Next, the pre-test and post test means for each
group can be compared (within each group), through dependent sample t-tests, to see if drinking
the Coca-Cola increased the pulse rate of the experimental group significantly. The control group
is also tested pre and post to demonstrate that there should not be a statistically significant
difference pre and post for this group. If there is, the implications can be explained.
Student Feedback
We have not yet developed a way to systematically analyze how the statistical analysis
has improved student learning and satisfaction with our courses. We do have some crude
measures though through student course evaluations and comments. For the same instructor
teaching the same course, the addition of the statistical analysis project increased the mean
student response and several important questions on the student evaluations. In addition, 78% of
the students surveyed responded that they agreed or strongly agreed that the group project was
helpful to understanding and comprehending the material. Of course these are not statistically
valid comparisons as there were many factors that were not controlled for but they do offer an
indication that the course improved with the addition of the project. We also each received
several favorable student comments regarding the structure of the course.
Student Evaluation of Teaching Question
Mean Score
Without*
Mean Score
With Project*
The material and/or skills developed in this course will be useful in the future.
2.19
2.47
My instructor made the material interesting.
2.66
3.03
My instructor encourage students to participate in their learning
3.11
3.58
My instructor was effective at promoting productive class discussions
2.58
3.21
I learned a lot in this course.
2.75
3.09
Overall, I would rate the quality of instruction in this course as outstanding.
2.75
3.19
*Scores are recorded on a 4 point scale. (0 = Strongly Disagree, 4 = Strongly Agree)


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