Tom,

I think the way to do that is to make two versions of the iowa.pbl
file, and in one of them edit the following lines around line 210:

   d1x <- gVideoWidth/2 -225
   d2x <- gVideoWidth/2 -75
   d3x <- gVideoWidth/2 +75
   d4x <- gVideoWidth/2 +225


This specifies the x position of each deck, and if you change the
ordering and save a new file, it should assign different decks to
different positions; something like
   d2x <- gVideoWidth/2 -225
   d4x <- gVideoWidth/2 -75
   d1x <-
gVideoWidth/2 +75
   d3x <- gVideoWidth/2 +225

But be sure to test this and the data it records to make sure it works
as intended.

Best,
Shane.

On Tue, 2016-05-24 at 17:45 +0000, REYNOLDS T. (883411) wrote:
> Hi,
> 
> I am a student, looking use PEBL as a way to give people the Iowa
> gambling task. However for my research, the test must be completed
> twice, and I'd like the decks at time 1 to be different to time 2, so
> that the good and bad decks must be relearned. I haven't found a way
> to do this with your software, is it possible? After consulting the
> wiki, it seemed that there were the "deck1Rew, deck2Rew, deck3Rew,
> and deck4Rew variables." which may be what I'm looking for, but I
> cannot find them when trying to edit the existing parameters.
> 
> I can see all the other ones (numtrials, UseMouse, shuffledecks) but
> not those.
> 
> Any help would be greatly appreciated.
> 
> Best wishes,
> 
> Tom Reynolds
> 740068
> MSc, Research Methods in Psychology and Cognitive Neuroscience
> -------------------------------------------------------------------
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