Hi all, I'm creating an experiment that requires participants to categorise a photograph. Each question is currently presented in a different block. Each block contains a picture, a multiple choice question, and a timing question (stimulus presentation is 2 seconds). I would like to hide the multiple choice question/answer options, and have participants respond via keyboard press (rather than by selecting the answer with via the mouse). I have the below code, although this does not seem to work. Does anyone notice any errors here? Under which question (within the block, e.g. picture, MCQ or timing question) should I place this code? As the stimulus presentation is 2 seconds, I do not want to advance to the next page after the keyboard press. TIA for the help.Qualtrics.SurveyEngine.addOnload(function(){this.hideNextButton();this.hidePreviousButton();var that = this;Event.observe(document, 'keydown', function keydownCallback(e) {var choiceID = null;switch (e.keyCode) {case 74: // 'J' was
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