Reset the progress bar?

[ebjacino]

Hello, I'm making an experiment that has 2 sections in it, and I would like to have the progress bar increment until full for the first half, then reset to empty during the break, then increment until full for the second half. I have it incrementing until full, but can't get it to reset, and it just stays full for the whole second half. Any ideas? Thanks!

[jodeleeuw]

Hi @ebjacino !

You'll probably need to set the progress bar manually to do this. Have you seen the docs for this? I'm guessing that if you've got it to fill all the way for the first half you've figured this part out. Are you finding that the progress bar isn't resetting to 0 with something like jsPsych.setProgressBar(0)?

[ebjacino]

Hi! Yes I have this instruction block for the second half:

      type: "html-keyboard-response",
      stimulus: "Welcome to the next experiment. Press any key to begin.",
      on_start: function() {
        // set progress bar to 0 at the start of experiment
       jsPsych.setProgressBar(0);
        }
    };

And it remains full. I'm not getting any errors in the web developer tools.

[ebjacino]

Ok, after some more sleuthing I figured out the problem was with how I was pushing things to the timeline in the right order and having 2 different n_trials variables (one for first half and one for second half)! So I can confirm it is possible to reset the progress bar in the middle of the timeline.

[jodeleeuw]

Oh good! Glad you were able to figure out the source of the issue and also that the progress bar isn't buggy 😅