@sandman
Regular expressions are an easy way to program several response variations that are acceptable as correct without having to program them all in separately. It worked very nicely in Blackboard under the "pattern match" option but I have been unable to make it work in Canvas quizzes or in quizzes.next. It's been a few years since we switched to Canvas so I don't remember everything I used to do with pattern match, but one thing I used it for was to account for common misspellings, so by including [ab] in my string where the misspelling often occurs, the acceptable responses could contain either "a" or "b" in that position in the string and still be correct. For example, a common misspelling pattern among Spanish speakers is to confuse the letters "b" and "v" because they sound the same. Let's say I'm more concerned about just getting the verb right rather than spelling for this item. If my correct answer is, say, habló, meaning "he/she spoke", I could write ha[bv]ló as my correct answers and it would accept habló as well as the incorrect havló. That's just one example. I found it very useful in Blackboard.
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