URL of experiment: https://run.pavlovia.org/CGrove/ebbinghaus_test_version/html
Description of the problem:
I designed this experiment in the builder with the aim to run it online asap. The experiment is almost 100% made using the builder components and conditions files, but there is a code component that is designed to allow participants to resize a circle on the screen using their keyboard.
Basically, the structure is: Ebbinghaus illusion presented for 30s followed by a fixation point (press SPACE to continue), then finally, the participant resizes a green ring using the ‘a’ and ‘b’ keys.
It works fine when I run it offline but when I run the pilot I have had several issues.
Most of these I have managed to resolve using the Python to Javascript crib sheet (e.g. adding event=psychoJS.eventManager to the beginning of the experiment). However, now when I run the experiment, everything works up until you have to resize the circle. The circle appears but when I press ‘a’ or ‘b’ to begin resizing, the image disappears and is replaced by a blank screen until you press SPACE. When this happens there aren’t any error messages and it just continues the experiment as usual. The code component is also supposed to create a column in the data file called ‘size_judgement’, this does appear but the data just says NaN.
There is likely a rookie error that I am making here but I am really struggling to find the source of the problem!
Thanks in advance 