Participants=?ISO-8859-1?Q?=B4_?=response via space key

[Claudia]

Thank you very much, liw! This was really helpful: the value "" was
the one I could not figure out, and because of it the experiment would
just stop every time I tried to run it. I will now try it again and
also follow your other advices re. lack of response as "correct
response".
Thank you also for the link to the manual.

Best,
Claudia

On May 26, 10:51 am, liwenna <liwe... at gmail.com> wrote:
> Hi Claudia,
>
> this is indeed very elementary... did you also check the 'manual'
> called 'an e-primer'? It can be downloaded here: step.psy.cmu.edu/
> materials/EPrimer.pdf
> I don't know it by heart but I daresay it should contain your answers
> and otherwise be helpful for you.
>
> As for the allowed response: this simply defines which buttons are
> being 'read' by e-prime. If a certain button is not defined response,
> one can press it however much they like, e-prime will not respond to
> it. To make the spacebar the only allowed response (no response is not
> a response, so you don't need to "allow" it) enter {SPACE} into the
> allowed responses field.
>
> However, the remaining of your question pertains not to how to set an
> allowed response but to how to set a correct response. To achieve what
> you want to achieve, make an attribute in your list that contains the
> correct response, call it "correctresp" or something the like. For
> trials in which space is the correct response give it value {SPACE},
> for trials in which no response is the correct response give it value
> "" (two times ", nothing inbetween). Tell your slide that this
> attribute contains the correctresponse by entering [correctresp] into
> the correct response field of the slide. In order to make it possible
> that no response is given ("allow" no response, if you like...) give
> the slide a set duration (1000 ms for instance, instead of infinite)
> so that it always disappears after a given time (even if no response
> is made). You can keep the end action at terminate if you want the
> slide to disappear after space is pressed or set it to  none of you
> want it to remain for the set duration even after spacebar is pressed.
>
> Best,
>
> liw
>
> On May 25, 9:21 pm, Claudia <0702clau... at gmail.com> wrote:
>
> > Hi,
>
> > I am very new to e-prime and, after having spent hours pouring on the
> > manuals, I have yet to find the solution to a likely elementary (!)
> > matter: How do I make the software accept 1) that the space key is an
> > "Allowed response", and 2) that absence of response is also an
> > "Allowed response". My experiment is a visual recognition task in
> > which my participants are supposed to press 'space bar' only if the
> > target flashed on screen (i.e. a triangle) has been preceded by some
> > specific stimuli, but not to press anything at all if the rule is not
> > met.
>
> > Thank you in advance for your help,
> > Claudia

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