jump or if then?

Wed Apr 20 11:24:55 UTC 2011

Hi Michiel,
Thank you so much for this new input. I think I have the right
structure in my procedure.  Here is what I have in my procedure:
> Slide 1 : allowed responses a & b
> InLIne: If slide1.RESP="b" THEN goto donttask2
> Slide 2: allowed responses 1, 2, & 3
> Label: donttask2

Indeed at the end of this sequence it moves on to the next trial on
the list. Am I missing something?

I'll try you suggestion as well,
Best,
Jotapan

On Apr 20, 11:55 am, Michiel Spape <Michiel.Sp... at nottingham.ac.uk>
wrote:
> Hi Jotapan,
> It shouldn't, as far as I can see. Do you have the most typical E-Prime structure here, or are you, in fact, jumping to and fro, indeed adding even another goto to my suggestion? That is to say, for E-Prime, it makes sense to stop thinking about "go to task 1, then goto task 2, followed by task 1" but instead see it as:
> In the beginning, there is a trial.
> In one trial, we present either one or two stimuli (or tasks, if you will).
> This means that there is no "going back to task 1" but rather, at the end of the trial, the procedure is repeated. In which case, Stimulus1.RESP as well as Stimulus2.RESP should be cleared.
>
> If this shot in the dark totally misses, however, you can just ignore me and use some work-around. I like to store my dependent variables as "Y_" followed by the type - so they all are stored at the end of your .edat file. This also gives you a little bit of flexibility in storing your data as you would like to analyse it. I'd say pick the correct lines and store your favourite responses at your favourite moment by doing something like
> c.SetAttrib "Y_RESP2", Stimulus2.RESP
> or, which shouldn't be necessary, at the very end:
> IF Stimulus1.RESP = "a" then c.SetAttrib "Y_RESP2", Stimulus2.RESP else c.SetAttrib "Y_RESP2", ""
>
> Best,
> Mich
>
> Michiel Spapé
> Research Fellow
> Perception & Action group
> University of Nottingham
> School of Psychologywww.cognitology.eu
>
> -----Original Message-----
> From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf Of jotapan
> Sent: 20 April 2011 11:33
> To: E-Prime
> Subject: Re: jump or if then?
>
> Hi Michiel,
>
> Thank you so much for your reply and for the link to your e-prime
> guide. It will be very helpful!
>
> I have been able to jump task 2 when participants responds B in task 1
> using your suggestion, but I now have a problem in the response and RT
> data logging. I was expecting the program not to save any information
> for the task2 trials when they are not presented to the participant
> (i.e., when it just jumps to task 1 again not presenting task2).
> However, the program is simply repeating whatever response is given
> the first time task 2 is presented on the following trials when task 2
> is not presented; these data only change the next time task 2 is
> presented again and another response is given to the task.
>
> Jotapan
>
> On Apr 20, 9:23 am, Michiel Spape <Michiel.Sp... at nottingham.ac.uk>
> wrote:
> > Hiya,
> > If it's as simple as you think it is, you should be able to do it after having read the "getting started guide". In this case, you would be right - and if the getting started guide may not do it for you, I'd suggest working through our little bit of freely available course material (www.cognitology.eu, about me, underneath everything else), because, ultimately, you cannot use E-Prime 'instantly' (at least, very few students seem to, even though there are some talented 'coders-to-be'). So, despite me answering this question, try to give it a go anyway.
>
> > 1. Stimulus1 is a textdisplay saying "Do you want to do task 2? A = yes, B = no", allowable response ab. That's just about what you want, no?
> > 2. After that is an inline saying
> > IF Stimulus1.RESP = "b" THEN goto Dontwanttodotask2
> > 3. Stimulus2 is a textdisplay saying "Select response 1, 2 or 3" (or whatever you'd like).
> > 4. Then insert a label, call it Dontwanttodotask2
>
> > That's basically it. Note that I use no else, since Stimulus2 will follow anyway, unless b is selected. After 4 is the end of the trial, so it should continue with your task1.
> > Best,
> > Mich
>
> > Michiel Spapé
> > Research Fellow
> > Perception & Action group
> > University of Nottingham
> > School of Psychologywww.cognitology.eu
>
> > -----Original Message-----
> > From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf Of jotapan
> > Sent: 20 April 2011 01:34
> > To: E-Prime
> > Subject: jump or if then?
>
> > Hi to all,
> > I have what I believe o be a simple task to program, but I just not
> > being able to do it since I'm a beginner in e-prime.
>
> > I have two tasks:
> > 1) task 1: responses A and B
> > 2) and task 2: responses 1, 2, and 3
>
> > I want task 2 to be presented to the participant only if he responds A
> > in task 1; if he responds B he should just gets the next trial of task
> > 1.
> > I tried looking into the "jump" of the stimulus property, but from
> > what I understood it works independently of what response is given to
> > that stimulus.
> > Another idea I had was just to create a script with an if then rule,
> > which I don't know how to do :( the idea would be something like (with
> > proper coding)
>
> > If response to task 1 = A,
> > then task B,
> > else Task A
> > end if
>
> > Any help would be very appreciated! thanks
> > Jotapan
>
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