4 ms·
If there are two major topics in a test (say Topic 1 and Topic 2), then bimodality could arise simply because * some people studied both Topic 1 and Topic 2 *
by trendia 10y ago
If there are two major topics in a test (say Topic 1 and Topic 2), then bimodality could arise simply because
* some people studied both Topic 1 and Topic 2
* some people studied Topic 1 more than Topic 2
* some people studied Topic 2 more than Topic 1
This would cause bimodality even when inherent "genetic" skill is the same.
- sqeaky 10y agoThis seems unlikely across multiple students and years (though it is possible so more than one schoool should be studied). You comment also presumes there are no students who can study well enough to pass all exams. Considering the ease of 100 level courses CS courses acing that and another 100 level is not exactly hard.
- elcritch 10y agoIf this were be turned into a more rigorous MCMC style simulation and fed basic societal trends of high school and early stage college on courses taken, interest, aptitude, etc you might be able to get an estimate on the size of effect of these factors. Hmmm...