recording two sets of reaction times simultaneously

[David McFarlane]

Rika,

In short, yes, E-Prime can do this, and quite elegantly too if you 
have enough understanding of E-Prime.

You will need to use what EP calls "extended response" -- see that 
tutorial in Appendix C of the User's Guide that came with E-Prime 
(really, everyone should do *all* the tutorials in *all* the manuals 
before starting their first EP program; it also would not hurt for 
folks to take my online course, see 
http://psychology.msu.edu/Workshops_Courses/eprime.aspx ).  I might 
start by using a Wait object with Duration 0 and Time Limit 
(infinite) to collect the push-button responses, then follow that 
with the speaking task.  If you want to log more than one push-button 
response during the speaking task, then you will have to adjust Max 
Count on the push-button object, and then add some inline code to log 
the collected train of responses -- see the "Multiple Response 
Collection" example downloadable from PST (registration & login required).

BTW, PST Web Support at 
http://support.pstnet.com/e%2Dprime/support/login.asp is also a good 
place to ask this sort of thing, and they strive to respond to all 
requests in 24-48 hours.

-- David McFarlane


At 2/13/2012 10:34 AM Monday, you wrote:
>Hi all,
>I would like to run a language experiment using e-prime where I want
>to record reaction times to spoken responses (so far, so good). I
>would however also like to have my participant perform a simple task
>requiring them to push a button at the same time. The instances when
>they are required to push a button will not be exactly the same as
>when they are required to give a spoken response. Does anyone know if
>it is possible to combine these two things (spoken responses and
>button press responses) in the same experiment and then also record
>two sets of reaction times?
>Thanks in advance for any responses!
>Rika

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