I’ve designed an experiment where there is 2 lists of 12 video stimuli, one of the stimuli list being always followed by an audio stimuli (which is constant).
My problem is that the audio stimuli, which is set to be “presented immediately after the participant response”, is always being presented with a delay (between half a second and a couple second…). This problem makes the experiment invalid.
PS: the video stimulus list has also a problem, whic is that, after a few trials, the videos no longer play on screen, but in a separate window titled “activemovie window”. I’ve read that it may be a problem of codec compatibility. Could you confirm me this point?