Hello,
I am working with videos of different lengths and want to measure response latency from a specific point in each video (the point differs by video as well) and I want any responses occurring prior to this point in the video to count as incorrect responses. If I set the responsetime to the point in the video I want to start counting as correct and the playthrough to false, does this solve the problem or do I need another workaround? When I tested it, it appears as if responses prior to the point do not register as incorrect.
<video dsnap3>
/ erase = true (white)
/ items = ("dsnap3.mov")
/ playthrough = false
/ position = (50%, 50%)
/ size = (50%, 50%)
/ valign = center
/ halign = center
</video>
<trial dsnap3>
/ stimulustimes = [1=dsnap3]
/ validresponse = ("g", noresponse)
/ correctresponse = ("g")
/ errormessage = true(error, 500)
/ timeout = 5010
/ responsetime = 3900
/ correctmessage = true(correctresp, 500)
</trial>