(Week 6->7) Analysis of 1) Classes H&I Pre and 2) Class B Pre-to-Post
Introduction In this investigation, we conducted two separate analyses. In the first, we compared the pre-test responses to Question 1 for classes H and I using Fisher's exact test for a 2x2 contingency table. We found that the pre-test responses for Question 1 provided no evidence that classes H and I are different. In the second, we compared the pre-test responses to Question 1 to the post-test responses to Question 2 for class B using contingency table methods (the Chi-Square Test, an approximation to Fisher's exact test using Stirling's Approximation for n!, and consider the limiting factors in our dataset for using either Rank-Correlation methods, the Kappa statistic, or McNemar's test) and assess other measures available for comparing binary vectors. We find it hard to make any meaningful conclusions, but propose that there was a significant difference between the pre- and post-test responses for class B. Classes H&I Pre-test Co...
