I have an experiment in which I present the text of a word, present an audio file at the same time, and then re-present the word. There is an SOA of 0 ms. between the first two events, and an SOA of 250 between the 2nd two; in the 3rd event, timing is unlimited (until participant responds). My question is this: Will response latency be measured starting 250 ms. after the visual and auditory presentation of the word? If so, if I change the 2nd SOA to 0 ms., will this solve the problem?
Thanks for any help on this issue. I just want to be absolutely sure that my participant response latencies are accurate.