n-back and wrong keyboard response collection after changing OS
I have created a n-back test and I am pretty sure that collecting keyboard responses worked properly on OS 3.2.7 (Python 2.7). Now I am using OS 3.2.7 (Python 3.6) and something is wrong during response collection.
Usually you press a button (e.g. space), when there is a hit. When there is no hit, it is a correct response when you don't push a button (None).
Looking at my excel file, it seems like OS only counts "None" as a response (and/or space doesn't work). When I press space, although there was no hit (=wrong answer), it is still logged as a correct answer and when there is a hit and I do press space (=correct answer), it is logged as a wrong answer.
Does anyone have an idea?