Fab
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- Fab
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Comments
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Hi @psychlg, Basically, you should include the logger at end of any sequence in which information is presented or collected that you want to see in the data output. So, if you want to keep a record of the order in which the pictures are presented, a…
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Hi @Vasileia_chr, I'm not sure I fully understand your description but if you want to achieve a full counterbalancing of conditions across participants, my suggestion is that you create lists of trials in .csv files and that you load these up in the…
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Hi @psychlg, Welcome to the forum! Based on you description, you simply want to present a series of trials in random order. This jjust requires that you set the order property of the loop to "random". https://forum.cogsci.nl/uploads/991/5V…
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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 af…
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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 var…
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Hi @Stephanie145, Glad this was helpful. Has removing the spaces in your code solved the problem? Best, Fabrice.
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Hi @Stephanie145, The error message should give you a good idea of what is going wrong. What error message do you get? My guess is that it says that some of your variables are not defined. The code you shared contains spaces between vars. and the va…
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Hi @megancc, What you are trying to do is a between-subjects experiment with 3 conditions/groups. With OSWeb, the subject number is assigned randomly by the task based on the settings you indicate in the OSWeb options: https://forum.cogsci.nl/upload…
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Hi @Gio38000, I don't program in Python but looking at your code, there are things I'm unsure of. If you want to measure response times from the onset of Canvas 1, it is odd to define the keyboard event after canvases 1 and 2 and to give a time out …
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This post is duplicated and therefore closed. Please avoid posting the same message in separate forums. Thanks! See https://forum.cogsci.nl/discussion/7978/how-to-accurately-calculate-reaction-time-in-python#latest
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Hi @JoeClaudus, I don't typically use the canvas function in Javascript but the line you mentioned work just fine in my test task: https://forum.cogsci.nl/uploads/653/Y31U7T10TV4V.osexp See if you can run this example. Best, Fabrice.
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Hi @NashD, As @sebastiaan mentioned earlier, the problem comes from the structure of your sequence. is there a reason why you duplicate the sketchpads and keyboard input object instead of using a loop to present Word1, Word2, Word3 etc.? the latter …
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Hi @tocb, As far as I'm aware, the subject number (stored in the subject_nr variable) has to be a number and does not accept other characters. You can however implement your own subject id input (e.g., using a form_text_input) and make sure to save …
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Hi @Aurélien, I'm no expert on this type of issues, but until some other users comments, here's my thinking... It looks as if it might have to do with the rescaling of graphics, type of font used and/or the scaling option within Windows (if you're u…
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@elienbellon Hi Elien, Great! Glad that you got it to work. Good luck with your experiment! Fabrice.
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Hi @carlotta, There may be other options but the only way I know to achieve what you're after in Javascript requires that you handle sounds from Javascript instead of using the sampler object. Note that the method I'm describing below will only work…
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Hi @tocb , Unfortunately, no, that is not possible with this simple implementation, because the task picks the condition at random every time it runs. If you want the experimenter to be blind to the condition to which each subject is allocated, ther…
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Hi @tocb, The easiest way to allocate randomly participants to a between-subjects condition without knowing in advance which condition will be picked for each subject is to use nested loops, with the highest-level loop containing two rows and one va…
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Hi @Soan, Oops, had missed that bit... Indeed, the code struggles with backspace in the specific case where the responses only contain digits because of the way OS handles variables. Whenever a variable contains only digits, it treats it as a numeri…
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Hi @Soan, This thread had escaped my attention and only just read it. Have you solved these problems already? Regarding the first issue, I'd reply the same as @eduard. Regarding the second, it might be a little tricky. I imagine you'd have to write …
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Hi @Soan, If I understand you well, you want to be able to sort the responses produced by the participant. Starting from the task example in another thread (https://forum.cogsci.nl/discussion/7816/can-i-show-keyboard-response-to-the-participant#late…
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Hi @Nomu, Glad your experiment is now ready to go and that my help was useful. Good luck with your experiment! Fabrice.
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Hi @hikai, Defining the correct response will make no difference to what keys are allowed. What you need to do is edit your Python code to make sure that the code dealing with response registration is not executed if the key pressed is not the space…
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Hi @Jenna004, Based on your description, it seems to me that you'll need to do some coding. My suggestion would be to work with arrays. You could add a variable to the loop where you present the images for rating and store a unique integer index in…
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@apodim Hi Dimitros, Great, glad it's working! Good luck with your experiment! Fabrice.
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Hi @hikai, I'm no expert with the use of videos in OS, but I did once helped another user with a similar problem. I think it should help you solve the problem: https://forum.cogsci.nl/discussion/7425/solved-video-stimuli-and-response-time#latest Bes…
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Hi @IrisH, Sounds as if the problem is not with the video files' integrity if they play fine on one computer. To help pinpoint what the issue might be... Do the videos play correctly if you play them from another application (e.g.., Window's media p…
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Hi @nuriagarcia, Small world! Realized you're in the office next to mine! 😃 Posting this just to update the forum so that this post doesn't stay flagged as an unanswered one while we meet to look into your task. Best, Fabrice.
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Hi @Monachili, I have no experience myself with forms, but I believe you can achieve what you're after designing your own form using Python code: https://osdoc.cogsci.nl/3.3/manual/forms/widgets/ and https://osdoc.cogsci.nl/3.3/manual/forms/custom/.…
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Hi @Nomu, There is no automatic way to do it on OSWeb but there are some workarounds. The easiest is to set the possible subject numbers to 1,2,3 in the settings of OSWeb. However, this does not guarantee that you'll have equal numbers of participa…