Going back a slide without a loop

[levis]

I am coding up an online experiment, with a long set of instructions (about 16 slides). For efficiency’s sake I coded it up as a single routine with every loop presenting the next slide. However, I would like participants to go back to previous instructions and so I added a command that takes the look the opposite direction.

if key_resp.keys=='left':
    trials.thisN-=2

This works well in psychopy but not on pavlovia.

furthermore, i’ve seen solutions for going back that involves adding loops but do not want to re-write everything. Any solutions for pavlovia would be appreciated!

[JensBoelte]

Hello,

really long instruction. Would that help? It is a different approach.

VESPR Demo Scroll Text

Scroll Text code | try it Scroll a text box up and down using arrow keys, mouse on a scroll bar or dragging and dropping the text itself. The code automatically estimates the total length of the text so the scroll bar is updated when the text is moved by other means. Press spacebar to continue appears once the text has been scrolled to the bottom. I use a new jitter method to update otherwise static components to keep them in front of the scrolling text. It works better online because the arr…

Best wishes Jens