Check a response with the distance function
Jaap MurreThis example shows how you can use the distance() function to check a response, allowing for a certain amount of error like typos. E.g., if the distance is 0, the response is perfect. If it is 1, there was one typo, etc. Formally, the Levenshtein Distance is used, see https://en.wikipedia.org/wiki/Levenshtein_distance.
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text("Remember the following words");
await(3000);
text("chair");
await(1000);
clear();
await(2000);
text("a normal experiment would have more words here");
await(3000);
input("Type a word you remember","word");
text("Distance response with 'chair': " + distance(response.word,"chair"));
await(3000);
text("If the distance is 0, the response was perfect");
await(3000);