Undefined variable

JoshP

Hello all,

I am currently having an issue with an undefined variable. I am not entirely certain to why it is undefined and any insight would be great. Some context, it is feedback after the practice trials [the avg_rt] works, yet [accuracy] does not work, given it is undefined. Any suggestions on how to ensure it provides average accuracy in percentage for the practice trials would be greatly appreciated. I shall attach photos to better capture the issue. Thank you in advance for any insights.

Undefined stated on the screen.png

Feedback.png

sebastiaan

Hi Josh,

For OpenSesame to keep track of accuracy, you need to define the correct_response variable. If you do this, most response items, such as the keyboard_response, will automatically calculate the variables acc / accuracy.

See also:

• https://osdoc.cogsci.nl/3.2/tutorials/beginner/#step-3-fill-the-block-loop-with-independent-variables

Cheers!

Sebastiaan