Hi Liw,<br><br>Thanks a lot! I appreciate you thinking about this for me. <br><br>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.<br>
<br>All the best,<br><br>Joseph<br><br><div class="gmail_quote">On Mon, May 4, 2009 at 7:19 AM, liwenna <span dir="ltr"><<a href="mailto:liwenna@gmail.com">liwenna@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Hi Joseph,<br>
<br>
At first I thought your problem would be due to having a variable<br>
'listaorlistb' in two consecutive lists... but I built a little<br>
testexperiment based on your info and that doesn't seem to be a<br>
problem... althoughI did not manage to replicate the last bit of info<br>
you give, were you use the variable 'listaorlistb' as a nested list...<br>
I could not figure that one out without having e-prime crash.<br>
<br>
The good news is though, that there is a setup possible, close to what<br>
you describe that does exactly what you need (or at least it does for<br>
me, and I obviously don't know what other features your task has that<br>
might interfere). I found that there is no need to use a variable<br>
'listaorlistb' at all, not in the first 2 level list (as long as you<br>
nest listA and listB well, you could use a variable like that for<br>
logging though) nor in the actual lista and listb. I hereby post a<br>
link to a screenshot of the setup that works for me. I opened the<br>
three lists so that you can see all the parameters and randomisation<br>
values. I hope it will help you to locate the litle culprit in your<br>
own experiment.<br>
<br>
<a href="http://images.redial.net/setuplistaorlistb.bmp" target="_blank">http://images.redial.net/setuplistaorlistb.bmp</a><br>
<br>
Good luck!<br>
<br>
liw<br>
<br>
On May 1, 10:50 pm, Joseph Williams <<a href="mailto:josephjaywilli...@gmail.com">josephjaywilli...@gmail.com</a>><br>
wrote:<br>
<div><div></div><div class="h5">> Hi Everyone,<br>
><br>
> I'm having a problem with an item being drawn twice from a list that is<br>
> nested in a non-typical way. I had to give two different groups of subjects<br>
> two different sets of test items, so I had a list with counterbalance<br>
> selection: the list had list A and list B nested inside along with a<br>
> variable [listAorlistB]. The first level had list A as a nested list and the<br>
> variable [listAorlistB] had value "listA", the second had the same for list<br>
> B.<br>
><br>
> Then a list containing the sub-procedure that displayed the (e.g. 5) test<br>
> items had the variable ( [listAorlistB] ) as a nested list so that it always<br>
> choose the relevant set of items. When I look at the data file (and examine<br>
> the items by running the program) the first 4 items appear to be drawn<br>
> randomly, but the 5th and last one is a repetition of one of the previous 4:<br>
> e.g. 4 2 1 2 (instead of drawing item 3). The item numbers which are shown<br>
> (like in the example) are correctly given by (e.g.) listA[logLevel5], but I<br>
> don't understand why one is being repeated instead of drawing another one. I<br>
> looked at multiple subjects and I always get this problem, and I noted is<br>
> that the final and repeated item is always the item number in<br>
> listA[SubTrial].<br>
><br>
> Does anyone have any ideas about what the problem might be?<br>
><br>
> Thank you,<br>
><br>
> Joseph<br>
</div></div><br>
</blockquote></div><br>
<br>
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