cursor_roi variable in JATOS/OSWeb

choql

Hello,

I am designing a simple number comparison task in which a child sees two numbers and needs to select the bigger number. We are planning to collect data using iPads by uploading our study to JATOS. I designed the task using a sketchpad and mouse response (so a child can click the number). My problem is that I am using the variable 'cursor_roi' to keep track of children's responses and whether or not they got the answer correct. However, I noticed that my inline script using cursor_roi does not work on JATOS/OSWeb. Is there a way to fix this/different way to keep track of children's responses and create a 'correct' variable that shows whether or not they got the problem correct?

Thank you all for your help!

Fab

Hi @choql,

I am assuminh that you are using Open Sesame 4 and OSWeb 2.0, since mouse response are not supported in OSWeb 1.4. Can you confirm?

Can you also confirm whether your task is running when you run it locally in the browser?

Best,

Fabrice.

choql

Hi Fabrice,

Thank you for your response. Yes, I am using OpenSesame 4/OSWeb 2.0 for my study. When I try to run it locally in the browser, I get an 'OSWebCompatibilityError.' I think my python inline_script using cursor_roi is the issue. Is there a different way to record the subject's responses and create a 'correct' variable? I attached a screenshot of the inline_script as a reference.

sebastiaan

Hi @choql ,

Python inline_script is in not supported by OSWeb. The solution would be to write an inline_javascript item that does the same thing:

if (cursor_roi === answer) {
    correct = 1
} else {
    correct = 0

For more information about using JavaScript in OpenSesame, see:

• https://osdoc.cogsci.nl/4.0/manual/javascript/about/

And for an overview of supported functionality in OSWeb, see:

• https://osdoc.cogsci.nl/4.0/manual/osweb/osweb/#supported-functionality

— Sebastiaan

PS. You can update relevant packages by clicking on the green update icon in the toolbar!

choql

Hi Sebastiaan,

Thank you so much! I have a quick question. I'm also trying to log cursor_roi to see which answer the child selected, but even after entering 'cursor_roi' variable in the logger, the excel output from OSWeb does not seem to include the variable. Could you help me with this issue?