timing of multiple responses in E-Prime

[Susan Campbell]

I'm not certain if anyone has answered your question off-list, but I've
prepared an example script that does muliple response timing and put it
up on the STEP website for people to look at and download.

The script is the third on the page at
http://step.psy.cmu.edu/script_samples/

I tried to find a way to find the time between responses with a minimum
of E-Basic scripting, but apparently the only way to get at the
sub-responses that make up an InputMask object is with scripting.
E-Prime actually collects the responses that make up a multiple-response
trial (InputMask.Responses), but it only records the final RT to the
output data file.  There's a lot of information in the E-Basic help
files (not the E-Studio ones, and not in the manuals that I could find)
about InputMask objects, but I don't know how useful it will be if you
don't have a scripting background.

For the script, I rather hacked up the code from the main InputMask
topic in the E-Basic help such that it collected multiple keyboard
responses per trial.  Their example uses mouse clicks.  I added writing
it to a data file as well, though I couldn't find a good way to add it
to the normal data file E-Prime generates.  There should be copious
comments on the code, but if it's still incomprehensible, please feel
free to let me know and I'll try to clarify.

I hope this helps,
Susan Campbell
STEP E-Prime Programmer




Jennifer Thompson wrote:

> I hope someone can help me with this, I'm new to eprime (and
> haven't used anything similar so starting from a very basic level).
>
> Basically, what I want to do is have people (neurological patients)
> repetatively tap a button for a predetermined time period, and look
> at the a) number of responses and b) the timing of these
> responses.  Reading the manuals I can't see a way to do this, and
> EPrime wants to record the time of the LAST response, not all of
> them.  What I want it to do is to sample the time of EACH
> response, relative to the start signal.
>
> If anyone can put me on the right track or has any suggestions I'd
> be most grateful.  Also if the above doesn't make sense then I can
> elaborate.
>
> Many thanks,
> Jennifer Thompson
>
>