How to deal with performance-based examinations?
Especially in education for adults, there are many subjects that can not be examined with multiple-choice items. Students do something, like write an essay, insert a catheter, build a wall, etc., and experts judge the quality of what they did. Unfortunately, we often see disagreement between the judges. What we really need then is a method to combine judgements to get a better assessment of the quality of each product and ultimately a better assessment of the student’s ability. We have developed methods to do precisely this. Note that even this work, which seems purely practical, led to fundamental research as its rationale is similar to that of jury law or indeed democracy in general.
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