Testing some multiple choice questions, I came across an issue that seems curiously little discussed in education circles. The case is the multi-select, multiple choice question, where a learner may select x number of correct answers from y number of options. The client particularly did not want to divulge how many correct answers there were,…

Online reviews are usually given as averages. But imagine restaurant A has ten 4 star reviews and restaurant B has eight 5 star reviews and two 1 star reviews. Similar averages, but restaurant A basically guarantees a 4 star meal, whereas restaurant B has a 1 in 5 chance of delivering a terrible meal. I…