Displaying 1 result from an estimated 1 matches for "persepctive".
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persepective
2009 Aug 18
0
Odd results with Chi-square test. (Not an R problem, but general statistics, I think)
...No its not the raw numbers its the proportion of correct answers that counts.
I've added a % correct to your data - does that make it clearer? Only 22.6% of version 3's answers were correct - so the difference in terms of % change is smaller than version 1 and 2 produced. From my niave persepctive I'd want to test for a difference between all results and baseline, and then v1 & v2, v1 & v3, v2 & v3 (you may tell me they are unsound things to test - in which case don't test them. You'd then need to determine a threshold for accepting that the test is valid (say p <...