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Fab

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Fab
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  • @apodim Hi Dimitros, Great, glad it's working! Good luck with your experiment! Fabrice.
  • 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…
  • 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…
  • 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.
  • 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/.…
    in typing responses Comment by Fab March 26
  • 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…
  • Hi @apodim, Ok, now I get it (I thought that your block_number variable was actually a counter). Ok, so what you want to do in your case is indeed to implement a counter that gets incremented every time your block_sequence runs. It's actually easy t…
  • Hi @apodim, I couldn't download your task (for some reason, my antivirus blocks it) but based on your description, couldn't you add the break (e.g., a sketchpad instructing subjects to take a break) within the experiment_loop and insert [block_numbe…
  • Hi @elienbellon, Joining this halfway through and without having taken a close look at your code, but your description makes me think that you're not redefining the feedback variable within the loop's sequence following each response. Can't say much…
  • Hi @Nomu, There is no automatic way of achieving what you're after, but one easy trick is to use the subject number to allocate them to a condition. What you want to do is use a modulus operator - or more precisely, the modulo operation. It is a way…
  • Hi @kakben, Great that you could solve it! Just out of curiosity, would you mind sharing how you were able to do it? I initially understood you wanted to set the timeout of a form_text_input, but it sounds like you're actually setting that of a keyb…
  • Hi @Jinbo, I haven't used triggers but I'd say that the answer to that question depends on what you are trying to achieve. Most likely, you'd want to send it during the "run" phase. The prepare phase contains code that is executed before a…
  • Hi @mirko, Maybe the developers or other users will have some useful suggestions but I don't think you can constrain the duration of the form base dynamically. One option would have been to calculate the maximum time left before the form is displaye…
  • Hi @EJ, Awesome! Gosh, the team is busy indeed! Thanks a lot for the link! Have downloaded the latest version and the ANOVA is now running smoothly and JASP is very responsive. Many thanks! Fabrice. https://forum.cogsci.nl/uploads/701/7MA1YFHH1U2W.p…
  • Hi @EJ, Thanks for the fast reply! (saved me from posting a bug report on the Github page 🙂) Awesome, then I'll wait for the next update 👍️ Looking forward to it! Cheers, Fabrice.
  • Hi @mirko, Thanks for your description. I get a better idea of what you're trying to do now. The solution would depend on your task characteristics... One option would be to set the "Run if" property of all the events in your sequence to o…
  • Hi @wieske, It's hard to pinpoint the origin of the issue. is there anything in your task that is conditioned by the subject's characteristics (especially with respect to the code that handles and the query string)? My suggestion would be to examine…
  • Hi @mirko, You can actually find some useful pointers here: https://forum.cogsci.nl/discussion/1281/solved-please-advise-countdown-timer-time-limit-in-sequence#latest the basic idea is to use some code to store the current time stamp before the loop…
  • Hi @Nomu, Thanks for the additional information. I've been very busy this last week and couldn't have a look at your task earlier. Based on what you described, here is what I suggest: Use code to pick a value between 1 and 3 at random. Use that valu…
  • Hi @Julien, I had a quick look at your experiment. The presentation of the sentences works, though personally I would have used a loop with 5 cycles to display the sentences, and a loop to display the math problems. the way you set it works, but if …
    in Need help Comment by Fab March 14
  • Hi @Julien, I think you'd need the parsing to score the responses. Regarding that issue, as regarding that of the logging of the responses, it would be easier to advise you if I could see how your task is structured. Could you possibly upload it to …
    in Need help Comment by Fab March 7
  • Hi @jsneuro, Lab testing certainly makes things easier. Otherwise, OSWeb 1.4 has improved since the version you used two years ago. It's not more flexible. Alternatively, if you have complex sets of rules to generate pseudorandom lists of trials, an…
  • Hi @Nomu, I only just saw your message (when replying to messages in the forum, it is best to use handles so that your correspondent gets notified). Just type "@" and the first letters of your correspondent's nickname and you'll see a pull…
  • Hi @jsneuro, You can use code to achieve complex counterbalancing, only you need to write it all in Javascript inside inine_javascript objects. Could it be that you tried running Python code in OSWeb? That would not work (the compatibility check wou…
  • Hi @Nomu, Welcome to the forum! The answer to your question really depends on your design and its complexity. The "Run if" property of objects in a sequence determines under what condition a given object is run. It0s handy for fairly simp…
  • Hi @Julien, There is no parsing plug-in. Parsing is just the process of separating a string into parts. It is done using code. So, in the case of a verbal recall task, one way is to get the participant to write all the words separated by some symbol…
    in Need help Comment by Fab March 3
  • Hi @EstelleArdanouy, I only just saw your message by chance while looking for something else. There are so many messages that I don't always spot when people reply to me unless they use my handle in the message. When replying to a message, the best …
  • Hi @Soan, The short answer to your question is: no, it is not possible to do without coding... However, the good news is that coding is not an issue (if the code is correct, it does not make your task less stable), and that using Javascript code, yo…
  • Hi @Julien, The answer to your first question depends on how you're running your experiment. If you're running it online as a JATOS experiment, you can set up the parameters of your study on JATOS to redirect participants to a specific URL once the …
    in Need help Comment by Fab February 27
  • Hi @Irekaeru, Have a look at your data log and identify the variable that counts the trial number in your experiment. If your sequence is not called "trial_sequence", then "count_trial_sequence" does not exist. Having a look at y…

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