I need each trial to appear for only 2 sec, during which the participants need to give the response. If the answer is given, the screen will move on to the next trial. If no answer is given within 2 sec, the screen also moves on to the next trial. But I noticed a problem on qualtrics: When a participant answers a trial at, say, 2001 ms. She is actually in the 2nd trial (because the time limit is 2000ms for each trial). But it seems that Qualtrics' screen is delayed: it is still at the first trial. So the participant thinks she's answering the 1st trial, while she's answering for the 2nd. And when the 2nd trial appears, it immediately advances to the 3rd trial (because the participant just answered the 2nd trial). I'd like to know how to fix this delay problem.
Hi, I need my participants to press keys on the keyboard to answer the questions. I'm using multiple choice questions with keyboard responses (using javascript). Now I just need to hide the multiple choice buttons. Here's a screenshot of where I am: ! I'd like to hide those two buttons. The javascript code I used for keyboard response is: 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 80: // 'p' was pressed choiceID = 1; break; case 78: // 'n' was pressed choiceID = 2; break; } if (choiceID) { Event.stopObserving(d
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