Forms, widget buttons and if-then's

ksalluzzo

Hello,

I am quite new to Open Sesame and have very limited Python knowledge so any help would be greatly appreciated.

I have a loop in which there are several forms with a picture and 2 button text widgets. Let's say that below the picture one button says "YES" and the other "NO". The participants should be able to move to the next picture only if they click YES (this happens naturally). But if they click NO they should not be able to see the next picture (new form) but go onto the next loop (questionnaire). Is this possible? #desperate

Thank you

Here is an example of the picture with the 2 buttons. (PS YES/NO are not the actual responses but I put them here to simplify)

If they respond "NO" on the Tracing_1F they should go directly to Fatigue scale, and not tracing_2F

sebastiaan

Hi @ksalluzzo ,

Yes, that's certainly possible. The trick is to link both buttons to experimental variables, say button_no and button_yes , using the var keyword when defining the button widgets. Next, you can use a run-if statement in the sequence to determine which items should be executed under which conditions, i.e. when which button is clicked. For example, to run an item only when the Yes button was clicked, and assuming you've linked the Yes button to the variable button_yes , you could use the run-if statement [button_yes] = yes.

I hope this conveys the general point. You can find more details on the documentation site:

• https://osdoc.cogsci.nl/3.3/manual/forms/custom/
• https://osdoc.cogsci.nl/3.3/manual/forms/variables/#button

Hope this helps!

— Sebastiaan

ksalluzzo

Hello Sebastiaan,

I finally got it after a lot of playing around!

Thank you so so much :)