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Multiple choice with reaction times

Hi,

Is it possible to create this sort of multiple-choice and have it also record reaction times? I attached an example I found in the forum.

Also is it possible to link a qualtrics questionnaire with the opensesame/OSWeb multiple choice with reaction times (if possible)?


Comments

  • FabFab
    edited May 16

    Hi @Stephanie145,

    Regarding your first question: Yes, you can run a MCQ and measure RT. In fact, the very example you uploaded does so. Any event in Open Sesame has a time stamp. And in this case, it's very simple since the keyboard object has a variable called response_time. My recommendation would be to follow the tutorials provided on the website and get familiar with the concept of variables and the keyboard object.

    I attach a very basic implementation here:

    An alternative would be to use the multiple choice form now available in Open Sesame

    However, this method may not be the best to measure RTs because it requires subjects to use the mouse to select an option and then click on a submit button. If you're after RTs, the first solution is best.

    Regarding Qualtrics, you can run Qualtrics and Open Sesame (OSWeb) in an integrated manner. What you can do is run your Qualtrics survey and then redirect participants to the OS experiment (which would need to run as a JATOS experiment) and pass information from the first to the second through the URL (using querystrings). To implement this solution, you'll need to familiarize yourself with Qualtrics use of querystrings (https://www.qualtrics.com/support/survey-platform/survey-module/survey-flow/standard-elements/passing-information-through-query-strings/) and with JATOS (https://www.jatos.org/jatos.js-Reference.html#original-url-query-parameters). I believe that Qualtrics does collect time stamps with each survey object, so in principle it should be possible to collect some sort of response times (you'd have to refer to the Qualtrics documentation on this).

    Hope this helpsª

    Fabrice.

    Buy Me A Coffee

  • Thank you so much @Fab . This is really helpful. I will definitely be using the first option!

  • @Fab, I have finally worked it out; however, when I click run experiment, it does not show the reaction timestamp; it just shows a black screen. Below I have added what the experiment looks like so far. Also, is there a way to add some sort of instruction slide before the experiment begins?


  • Hi @Stephanie145,

    Your description does not contain enough information for me to understand that the issue is. When you say that the it does not show the RT but just a black screen, when and where exactly? Have you set your task to display the RT after a response is collected? If so, and if the second sketchpad in your experiment sequence is where you are trying to display the RT information, you need to replace the sketchpad but a feedback object (if you look at my example you'll notice that I use a feedback object, not a sketchpad). This is because the content of sketchpads are prepared before the sequence run (i.e., before the subject responds). In contrast, the feedback object is drawn in real time, which allows you to use it to display feedback about the current trial as the task runs.

    Regarding the presentation of instruction, yes, you simply need to present them on a sketchpad. Just make sure to place it in the appropriate place in your timeline.

    Hope this helps,

    Fabrice.

    Buy Me A Coffee

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