i have a question about my analysis in an experiment. In the experiment: Students hear sounds (each sound has about 822 ms duration) and i record reaction time.
I try to analyse data with spss but i have no significant results. I thought maybe that i have to substract duration of the sound file from RT (RT-duration of wav file). But then i have some negative numbers:
e.g. RT: 722ms
duration of sound file: 822 ms
So i get: -100.
Do you know how we analyse these RT? Can we have an analysis only with RTs or I should do something else (e.g. add to the RT prelease time and then substract duration of wav file?)? I haven't seen a paper sayins something about such an analysis.
Thanks a lot,
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