My question concerns the extent to which the dialog box at the beginning of the experiment can be customized. In particular: Can items be selectively obligatory? For example, I would like to force my subjects to submit their participation code. As of now, you can start the experiment even if you …

[image] Require filling in experiment info fields Builder Ok, thanks for the reply. Any idea why on Pavlovia the experiment info box says “Fields marked with asterisk are required”?

@rob-linguistics13 , if you want fields to be required, you need to end each fieldname in the experiment settings with an asterisk. E.g., participant*. Ah, which is what Michaels link shows.

Thank you both - I didn’t catch that topic in my search! I can’t seem to put special characters (i.e., ? and parenthesis ( ) ) as part of the strings of the dialog box. Various pages suggest to use the backslash \ to escape those character, but when I try that, I get a blank screen. If I put double…

@rob-linguistics13 , the size of the dialog box is not customizable, you can only add extra elements with different types of responses e.g., text, true/false or menu list options. As an alternative, you could add an extra routine where you collect types responses. Take a look at the input text demo, …

Thank you for point this out, @dvbridges !! [image] rob-linguistics13: I can’t seem to put special characters (i.e., ? and parenthesis ( ) ) as part of the strings of the dialog box. Various pages suggest to use the backslash \ to escape those character, but when I try that, I get a blank screen…

@rob-linguistics13 , I cannot seem to duplicate the error. When I add this line as a field for the dlg, I see the question presented in the dialog ok, and it also saves correctly as a header in the datafile.

thanks for checking, @dvbridges ! Would you mind sharing the line of code you used?

Ah I was using the Experiment Settings dialog. The code for the online studies was simply: let expInfo = {'participant': '', 'Did you live in the United States from birth until (at least) age 13?*': '001'}; // schedule the experiment: psychoJS.schedule(psychoJS.gui.DlgFromDict({ dictionary: expI…

Interesting. It seems that the special characters can be printed as part of the key of the expInfo dictionary as long as the associated value is not empty. So: expInfo = {'participant': '', 'Did you live in the United States from birth until (at least) age 13?*': '001'}; works, but expInfo = {'pa…

Thanks for the info, I will have to check, but it is possible that drop downs are not yet supported in PsychoJS. I have created a GitHub issue requesting support for this functionality.

Customizing the dialog box

Online experiments

Michael May 6, 2019, 7:00am 2

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Customizing the dialog box

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