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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">I uploaded an example PsychoPy script that will do this for you (including stimulus generation and analysis R scripts) at
<a href="http://files.dotsch.org/RcicrPsychopyExample.zip">http://files.dotsch.org/RcicrPsychopyExample.zip</a>. Stimuli are not presented randomly, but the position of the original and inverted stimuli are randomized every trial. It should not be too difficult
to also adapt it to present the stimuli pairs in random order. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">The script uses the mouse as input device, and the unselected image fades into the background, which is also pretty cool.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Hope this helps.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Ron<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:Helvetica;color:#919191">Ron Dotsch, PhD</span></b><span style="font-size:9.0pt;font-family:Helvetica;color:#919191"> | Associate Professor | Utrecht University | Department of Psychology | Office:
Langeveld H1.11, Heidelberglaan 1 | Phone: +31 30 253 4198 | Website: </span><span style="font-size:10.5pt;font-family:Calibri;color:black"><a href="http://ron.dotsch.org/"><span style="font-size:9.0pt;font-family:Helvetica">http://ron.dotsch.org/</span></a></span><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black"><rcicr-users-bounces@lists.r-forge.r-project.org> on behalf of Erdem Ozan Meral <erdemozanmeral@gmail.com><br>
<b>Date: </b>Friday 27 May 2016 at 15:12<br>
<b>To: </b>"rcicr-users@lists.r-forge.r-project.org" <rcicr-users@lists.r-forge.r-project.org><br>
<b>Subject: </b>Re: [Rcicr-users] Programming RCP in PsychoPy (Nicholas Michalak)<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Nicholas Michalak, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I had the same problem when I was trying to create the experiment in PsychoPy. I couldn't actually completely figure out how to do this, but I tried something different. I know that this is not what you are intending to do, and you probably
thought of this already but what I did was to assign locations to pairings before the experiment. For half of the pairs the original was on the left, and the inv was on the right, for the other half I did the reverse. I entered the locations in the excel file
that I feed to the PsychoPy. Since PsychoPy was selecting trials in a random order without replacement, the participants did not see one type of stimulus in the same location for all the trials. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Again, I know that this is not exactly what you intended to do, but this is the closest that I could come up with in a short time. If you could find a better solution I would love to hear that too! I couldn't find a way to do this in PsychoPy's
google groups as well.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">It would look like this if you had four pairs in the method that I just mentioned.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">image1_inv.jpg<o:p></o:p></p>
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<p class="MsoNormal">[-0.5,0]<o:p></o:p></p>
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<p class="MsoNormal">[0.5,0]<o:p></o:p></p>
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<p class="MsoNormal">image4_inv.jpg<o:p></o:p></p>
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<td style="padding:0cm 0cm 0cm 0cm;height:16.0pt">
<p class="MsoNormal">[0.5,0]<o:p></o:p></p>
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<p class="MsoNormal">[-0.5,0]<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-family:"monospace","serif";color:black">Erdem Ozan Meral</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;font-family:"monospace","serif";color:black">Boğaziçi University</span><span style="font-size:9.5pt;color:#888888"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;font-family:"monospace","serif";color:black">Department of Psychology</span><span style="font-size:9.5pt;color:#888888"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;font-family:"monospace","serif";color:black">Research & Teaching Assistant</span><span style="font-size:9.5pt;color:#888888"><o:p></o:p></span></p>
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<p class="MsoNormal"><u><span style="font-size:9.5pt;font-family:"monospace","serif";color:#0000EE"><a href="http://www.psychology.boun.edu.tr/" target="_blank">www.psychology.boun.edu.tr</a></span></u><span style="font-size:9.5pt;color:#888888"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, May 27, 2016 at 1:00 PM, <<a href="mailto:rcicr-users-request@lists.r-forge.r-project.org" target="_blank">rcicr-users-request@lists.r-forge.r-project.org</a>> wrote:<o:p></o:p></p>
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Today's Topics:<br>
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1. Programming RCP in PsychoPy (Nicholas Michalak)<br>
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----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Thu, 26 May 2016 13:23:36 -0400<br>
From: Nicholas Michalak <<a href="mailto:nickmm@umich.edu">nickmm@umich.edu</a>><br>
To: "<a href="mailto:rcicr-users@lists.r-forge.r-project.org">rcicr-users@lists.r-forge.r-project.org</a>"<br>
<<a href="mailto:rcicr-users@lists.r-forge.r-project.org">rcicr-users@lists.r-forge.r-project.org</a>><br>
Subject: [Rcicr-users] Programming RCP in PsychoPy<br>
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<br>
Hi all<br>
<br>
I've successfully programmed an RCP in Medialab, but I'm trying to<br>
translate to PsychoPy in Python.<br>
<br>
Before I ask my question, is there a rcicr thread on programming an RCP<br>
experiment in PsychoPy?<br>
<br>
If not, I'm having trouble presenting the stimuli pairs (i.e., ori and<br>
inv) in such a way that participants see each pair in random order (without<br>
replacement), where the images in a pair are randomly presented on the left<br>
or the right of the screen.<br>
<br>
So if I have 400 pairs and two sides of the screen, I'd want PsychoPy to<br>
draw from the pairs randomly without replacement and draw within the pairs<br>
randomly without replacement: present a random stimuli from a random pair<br>
on the left and place the remaining stimuli from that pair on the right.<br>
<br>
I welcome any solutions--thank you!<br>
<br>
Nick<br>
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End of Rcicr-users Digest, Vol 9, Issue 4<br>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"monospace","serif";color:black">Erdem Ozan Meral</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;font-family:"monospace","serif";color:black">Boğaziçi University</span><span style="font-size:9.5pt;color:#888888"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;font-family:"monospace","serif";color:black">Department of Psychology</span><span style="font-size:9.5pt;color:#888888"><o:p></o:p></span></p>
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