Ask your participant to wear earphones (making sure the left earphone is on the left ear and vice versa). Then ask them to face away from the screen so they cannot see which stimuli you are presenting. Then click on one of the sounds below and adjust the volume of your computer (not the volume slider on each sound below) if the sound is either too loud or too quiet.
Your participant should be able to hear Sound 1 on their left and Sound 2 on their right. If not, check to make sure they are wearing the earphones correctly or try another pair. If this still doesn’t work, try using another computer.
Once you have set everything up correctly, click next.