Extended reaction and accuracy

[Maria]

By testing your suggestion, I figured out that if you use just
Slide1.acc and Slide1.resp instead of c.getattrib("Slide1.acc") and
c.getattrib("Slide1.resp")
it even works when the correct answer is given after the duration of
Slide1 !
So thanks for your help ;)

Bye for now,
Max





On 11 Feb., 20:41, liwenna <liwe... at gmail.com> wrote:
> Oh dear, it seems I answered too fast.
>
> (Of course, we
> took care that we use Slide1.Acc only when the time limit for reaction
> is over).
>
> ^ I take it that that is the answer to my question already, sorry for
> that.
>
> Still the do-while-loop suggestions stands, I think.
>
> There is one thing that I do not understand though: if I understood
> you correctly, the extended reaction time for slide1 overlaps with the
> display time of slide2? Yet you wish to distinguish between responses
> (either correct or false) made during slide1 and slide2. Did I
> understand that correctly? (probably not?).
>
> On 11 feb, 20:32, liwenna <liwe... at gmail.com> wrote:
>
>
>
> > Thanks for the more complicated set-up info. Hmmmz  Could it be that
> > the inline is placed directly following slide1? And that therefore the
> > inline script is already executed before the end of the extended
> > reaction period, thereby not taking into account responses made during
> > the extended response time? (rather than the .acc and .resp attributes
> > being set at the end of the trial, I have no e-prime at home to fiddle
> > with and I'd like to take you on your word, but it sounds a bit 'un-e-
> > primey' to me)
>
> > Is it needed that the trigger is sent immediatly following the correct
> > response? (since you mention the option of a false response followed
> > by a correct response, would you also take into account a correct
> > response correct by a false response, in which case I suppose no
> > trigger should be sent?) If false corrections do not need to be taken
> > into account, you could perhaps do something with a 'do while' loop
> > that continuously monitors slide1.resp and initiates the trigger the
> > moment that slide1.resp = slide1.cresp?
>
> > On 11 feb, 14:25, Maria <maria.richter.m... at googlemail.com> wrote:
>
> > > Thanks liwenna for answering.
>
> > > Of course, if you set the property „Time Limit“ to “same as duration”
> > > of both slides an combine the accuracy of Slide1.acc and Slide2.acc it
> > > works fine. The problem is that we distinguish between “correct
> > > response”, “false response” and “no response” and even with only 2
> > > Slides during the subject can react; there are 9 different
> > > combinations of possible reactions we have to regard (e.g. the subject
> > > could react wrong during Slide1 and try to undo it and press the right
> > > key at slide2…). The more slides where the response can be given, the
> > > more possibilities and if the duration of the slides are variable, it
> > > is not possible (or very complicate) to calculate the accuracy if the
> > > time for reaction should be a fix interval.
>
> > > The easiest way is to set the property “time limit” of Slide1 longer
> > > than the presentation of Slide1. And it works if you look at the data
> > > of the results-file, the accuracies (Slide1.acc) and given responses
> > > (Slide1.resp) are correct. But if we tried to send a trigger depending
> > > on Slide1.acc, it doesn’t work if the reaction time is longer than the
> > > duration (but in the result file Slide1.acc is correct even if the
> > > reaction time is longer than the duration of Slide1). (Of course, we
> > > took care that we use Slide1.Acc only when the time limit for reaction
> > > is over).
>
> > > Our hypothesis is that if you use a time limit for reactions longer
> > > than the presentation of a slide (and the reaction is given after the
> > > duration of the slide but during the allowed time for reaction), then
> > > the properties Slide1.acc and Slide1.resp will be set at the end of a
> > > trial into the list. So Slide1.acc is not available during the trial
> > > (and so we can’t use it for sending a trigger). What would help us is
> > > some code that set the properties Slide1.acc and Slide1.resp into the
> > > list before ending a trial or a code that we can use the properties
> > > Slide1.acc and Slide1.resp of the previous trial (then we would sent
> > > the current accuracy during the next trial). And perhaps there is also
> > > a solution we not thought about…
>
> > > Thanks for any help,
> > > Max
>
> > > On 10 Feb., 13:27, Maria <maria.richter.m... at googlemail.com> wrote:
>
> > > > Good morning!
>
> > > > We have the following strange problem:
>
> > > > We sat the "time limit" for reactions (=2000ms) longer than the
> > > > presentation time of the slide1(1000ms) (at which should be reacted
> > > > and which was followed by a slide2 (1000ms)) and asked in a later
> > > > inline
>
> > > > -----------------
>
> > > > if c.getattrib("Slide1.acc") = 1 then
>
> > > > l=3
>
> > > > end if
>
> > > > if c.getattrib("Slide1.acc") = 0 then
>
> > > > l=4
>
> > > > end if
> > > > debug.print l
>
> > > > ---------------------------
>
> > > > In trials, where the reaction time was longer than the presentation
> > > > time of the first slide (reaction during slide2) the "l" was set 4,
> > > > even in correct cases.
>
> > > > We need the accuracyinformation at this point of the experiment to
> > > > send triggers.
>
> > > > Is there anyone who had the same problem before?
> > > > Thanks for any answer, we have no idea...
>
> > > > Best wishes,
>
> > > > Max- Zitierten Text ausblenden -
>
> - Zitierten Text anzeigen -

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