I created an SPR experiment following the approach outlined in your example. The words are being displayed in-place.
I realised that when the space bar is kept pressed, the all the words of the current trial are running through at max speed. It appears, the DashedSentence Controller doesn’t actually wait for a key release before registering the next keypress.
Interestingly, this also clutters the result file with many repetitions of the data from the entire sentence, but each time starting at the beginning of the sentence again, not just repeating the current word. But this might only be a tangential issue.
Is this a known problem and are you aware of any way of resolving this, e.g. by making key releases obligatory?
Thanks a lot!