Problem with having an item drawn repeatedly from a nested list

[Joseph Williams]

Hi Liw,

Thanks a lot! I appreciate you thinking about this for me.

I'll try out this more direct approach that you used, there was a reason to
have things nested the way I did it the first time, but now on second
thought I think I can get around that.

All the best,

Joseph

On Mon, May 4, 2009 at 7:19 AM, liwenna <liwenna at gmail.com> wrote:

>
> Hi Joseph,
>
> At first I thought your problem would be due to having a variable
> 'listaorlistb' in two consecutive lists... but I built a little
> testexperiment based on your info and that doesn't seem to be a
> problem... althoughI did not manage to replicate the last bit of info
> you give, were you use the variable 'listaorlistb' as a nested list...
> I could not figure that one out without having e-prime crash.
>
> The good news is though, that there is a setup possible, close to what
> you describe that does exactly what you need (or at least it does for
> me, and I obviously don't know what other features your task has that
> might interfere). I found that there is no need to use a variable
> 'listaorlistb' at all, not in the first 2 level list (as long as you
> nest listA and listB well, you could use a variable like that for
> logging though) nor in the actual lista and listb. I hereby post a
> link to a screenshot of the setup that works for me. I opened the
> three lists so that you can see all the parameters and randomisation
> values. I hope it will help you to locate the litle culprit in your
> own experiment.
>
> http://images.redial.net/setuplistaorlistb.bmp
>
> Good luck!
>
> liw
>
> On May 1, 10:50 pm, Joseph Williams <josephjaywilli... at gmail.com>
> wrote:
> > Hi Everyone,
> >
> > I'm having a problem with an item being drawn twice from a list that is
> > nested in a non-typical way. I had to give two different groups of
> subjects
> > two different sets of test items, so I had a list with counterbalance
> > selection: the list had list A and list B nested inside along with a
> > variable [listAorlistB]. The first level had list A as a nested list and
> the
> > variable [listAorlistB] had value "listA", the second had the same for
> list
> > B.
> >
> > Then a list containing the sub-procedure that displayed the (e.g. 5) test
> > items had the variable ( [listAorlistB] ) as a nested list so that it
> always
> > choose the relevant set of items. When I look at the data file (and
> examine
> > the items by running the program) the first 4 items appear to be drawn
> > randomly, but the 5th and last one is a repetition of one of the previous
> 4:
> > e.g. 4 2 1 2 (instead of drawing item 3). The item numbers which are
> shown
> > (like in the example) are correctly given by (e.g.) listA[logLevel5], but
> I
> > don't understand why one is being repeated instead of drawing another
> one. I
> > looked at multiple subjects and I always get this problem, and I noted is
> > that the final and repeated item is always the item number in
> > listA[SubTrial].
> >
> > Does anyone have any ideas about what the problem might be?
> >
> > Thank you,
> >
> > Joseph
> >
>

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "E-Prime" group.
To post to this group, send email to e-prime at googlegroups.com
To unsubscribe from this group, send email to e-prime+unsubscribe at googlegroups.com
For more options, visit this group at http://groups.google.com/group/e-prime?hl=en
-~----------~----~----~----~------~----~------~--~---

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listserv.linguistlist.org/pipermail/eprime/attachments/20090505/6a179343/attachment.htm>