[solved] Problem with keyboard response: participants have to respond twice
I have another problem:
I have one experiment where participants are shown pictures in a loop. Also in the loop is the keyboard_response because the participants will have to rate every picture from 1 to 10 (assinged from 0 to 9). The experiment works so far. The only problem is, that I have to do every rating twice to go to the next picture.
I.E. one picture appears on the monitor and the participant should rate it from 1 to 10 (0 -9) but one answer (one button press) is not enough. The next pictures is only shown when two buttons (between 0 and 9 are pressend) no matter if it are the same or different ones.
I have no idea why that could be.
Do you have any idea?