correct answer depending on "group" startup information

[Tobi]

Thank you very much for your e-mail. Only now I had the time to have a
close look at the problem again. It helped very much to solve the
problem. Just to maybe help others, I attach your e-mail here in the
forum so that it can be found by others. I guess that you're in favor
of that as you've already tried to post it aswell but then lost it.



"Hello Tobias,

Only last week did I have something similar at hand...
In my task a version (A B C or D) is assigned to each subject based on
subject number. Several features differ between the four different
versions, one of which is the
order of the response keys. I solved this as follows; in the slides
the correct response refers to an attribute called cresp, which is
declared on the user tab. In the triallist I have two collumns one
called abcresp, other one cdcresp (version A & B, and C & D are the
same response-key wise). An inline at the start of each trial tells
eprime to take the value from either abcresp or cdcresp and use this
value as cresp, depending on the variable 'version'.

Step 1:
declare the variable cresp on the user tab: dim cresp as string

step 2:
tell the responseslide that the correct response is [cresp]

step 3:
make two attribute collums in your triallist that contain the correct
response for both your 'groups', for instance group1cresp and
croup2cresp and fill them with D's and F's accordingly

step4:
add an inline at the start of your trialproc that contains something
like this:

If c.getattrib ("group") = 1 then
       c.setattrib "cresp", c.getattrib ("group1cresp")

If c.getattrib ("group") = 2 then
       c.setattrib "cresp", c.getattrib ("group2cresp")

end if


I hope this helps.

Best regards,

liw"

On 16 Sep., 17:03, liwenna <liwe... at gmail.com> wrote:
> I think I posted a reply to this thread (I wrote one for sure ^.^) but
> it doesn't show up... my guess is that I hit 'reply to author' by
> accident, but I can't find a record of that anywhere. Tobias, if you
> didn't receive mail from me, let me know, then I'll repost (right now
> I am a bit lazy to do so... it's time for me to go home...).
>
> Have a good evening everyone!
>
> On Sep 16, 11:56 am, Tobi <tobias... at gmail.com> wrote:
>
> > Thank you,
>
> > that works fine. Unfortunately, in my real experiment (this example
> > was kept simple due to comprehensiveness) I don't have 2 lines in my
> > list but 640. I guess there is an easier way than using 640*2 lines in
> > this InLine. If I understand correctly, "List1.SetAttrib 1" changes
> > the first line in the list and "List1.SetAttrib 2" changes the second
> > line.
>
> > That means, that the CorrAns value is replaced (seehttp://chilion.com/probl1.JPG
> > ) no matter if [yes] or [no] was specified. In fact in my real
> > experiment I also have only two variables. Easiest would be to change
> > [yes] to let's say "D" and [no] to "F" if c.GetAttrib("group") = 1 and
> > the other way round if it's 2.
>
> > Is that possible?
>
> > Thanks already in advance!
>
> > Cheers,
> > Tobias
>
> > On 5 Sep., 23:08, Shin-Yi Fang <shinyi.f... at gmail.com> wrote:
>
> > > Hi,
>
> > > I think group is not really a variable. It  is an attribute. You will need
> > > getattrib function. The following script probably is what you need.
>
> > > if c.GetAttrib("group") = 1 then
> > >    List1.SetAttrib 1, "corrAns", "w"
> > >    List1.SetAttrib 2, "corrAns", "q"
> > > else
> > >    List1.SetAttrib 1, "corrAns", "q"
> > >    List1.SetAttrib 2, "corrAns", "w"
> > > end if
>
> > > Best,
>
> > > Shin-Yi
>
> > >    List1.SetAttrib 1 "corrAns")yes = "q" and no = "w"
>
> > > > if group = 2 then yes = "w" and no = "q"
> > > On Fri, Sep 4, 2009 at 6:10 PM, Tobi <tobias... at gmail.com> wrote:
>
> > > > To be more understandable, here are two screenshots, one of the list
> > > > and one of the InLine:
>
> > > >http://chilion.com/probl1.JPG
> > > >http://chilion.com/probl2.JPG
>
> > > > On 4 Sep., 19:40, Tobi <tobias... at gmail.com> wrote:
> > > > > Hi everyone,
>
> > > > > I have a question concerning the "group" variable than can be prompted
> > > > > for in the beginning of each session. I want to change the correct
> > > > > answer key according to this group variable (and change the key
> > > > > assignment as a consequence of corse).
>
> > > > > In a very easy example there might be a trials with a target or no
> > > > > target (blank). One group should answer with "w" for TARGET and "q"
> > > > > for BLANK, the other group the other way round:
>
> > > > > LIST:
>
> > > > > ID             Procedure   corrAns
> > > > > -------------------------------
> > > > > 1               blank           [no]
> > > > > 1               target  [yes]
>
> > > > > I used this InLineas the very first line:
>
> > > > > dim yes, no
> > > > > if group = 1 then yes = "q" and no = "w"
> > > > > if group = 2 then yes = "w" and no = "q"
>
> > > > > Unfortunately I get the error message "Unknown function "group"".
> > > > > What does that mean? I am not so familiar with Basic, so any help
> > > > > might be very cool.
> > > > > Maybe you have other suggestions to change key assignment by the help
> > > > > of startup information.
>
> > > > > Thanks a lot,
> > > > > Tobias
>
> > > --
> > > Ph.D. Student
> > > Department of Psychology
> > > University of Connecticut
> > > and
> > > Haskins Laboratories
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