A good point. The students place themselves in the courses. Many of my students place themselves there due to whether it fits in their schedules or not. Additionally, many of the freshmen students don't even know what they have chosen. This is another area worthy of study. I would like to study this where the students are randomly placed, but there are problems when you take choice away from the students. this study includes the entire population of students who have taken Calculus&Mathematica at the University of Illinois since it's inception. Some may or may not have been subjected to propaganda,either positive or negative. Students high school records were only used as a basis of admission to the university. ACT score were checked to see if one group was higher than the other for students in C&M or traditional calculus. This data only reflects the trend for students in this class at this university.
Thank you very much for your comments. I will keep these questions in mind for future analysis.
On Sat, 25 Nov 1995 firstname.lastname@example.org wrote:
> >> The analysis of variance showed significant differences among the three > >>groups > >>The average grade in ECE 270 for the three groups was: > >> > >>Calculus&Mathematica only--------- 4.09 > >>Standard calc only-----------------3.73 > >>Mixed------------------------------3.56 > >> > >> The t-test showed that within a 95% confidence interval, the C&M students > >>earned a score within >>the range of 0.242 to 0.471 higher than the standard > >>calc student in ECE 270. > >> > >>No ACT scores were run on this set because there was no difference for > >>any of the calculus courses on a 99% confidence interval. > > > >We expect to study followups in other engineering courses as well. > > > >-Jerry Uhl > > Information about the following would be somewhat pertinent:- (1) Were the > students admitted into the three groups "Calculus&Mathematica only" > "Standard calc only" or "Mixed" in a random manner or was there a > selection process based on the students' scores in previous (high school?) > courses? (2) Was there some sort of propoganda or counselling to which the > students were exposed which could have influenced them to choose one of the > three groups? > > More questions of the above type would need to be answered before > suspecting that program X is better than program Y. > > P Ramankutty. > >