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Hi, Stephane,<br>
<br>
I can't get "Do While" or "Do Until" scripts to work for me, either,
despite studying the syntax and getting help from people here. I don't
know why they don't work, even when I just copy examples.<br>
<br>
So the first Slide is the introductory Slide where both responses are
correct, so it is always the same. That's easy. Just include either the
Left or Right response as Allowable in the Slide object properties and
make the Slide terminate when an allowable response is entered. After
that Slide, you want to get the Response via an Inline object and use
it to set up the next slide, right? I would use an If, because they
work for me.<br>
<br>
So that if Slide1.RESP is Left (or whatever the Left response is), Then
<br>
Slide2.CRESP or Correct Response = Right (or whatever the Right
response is).<br>
Draw the £20 on the Right side of the Slide2 screen<br>
<br>
ElseIf Slide2.RESP is Right, Then<br>
Slide2.CRESP = Left<br>
Draw the £20 on the Left side of Slide2 screen<br>
<br>
EndIf, with this Inline Object followed by a Label and then Slide2.<br>
<br>
After Slide2 I would have another Inline Object that gets Slide2.CRESP,
& another If<br>
<br>
If Slide2 response is correct, Then<br>
Change correct response<br>
Draw £20 on the other side of the screen<br>
EndIf<br>
<br>
Goto the Label before Slide2 (because no change is made if the subject
is wrong, right?)<br>
<br>
The two other things you would need in this Inline Object is first,
writing your data to a text file or into your e-data file (I put time
stamps in to make sure my response times are accurate), since I think
if you don't do this you will only get the data from the last time you
run Slide2; and second, you will need some way out of this Iffy loop.
How does it end? After a certain number of trials, or after a certain
number of correct answers, or after a certain amount of time? I don't
know, but you will need to establish some attribute that keeps track of
that number & check it after each run of Slide2 in the Inline
Object that occurs after Slide2 so that you can exit gracefully at the
end of the task.<br>
<br>
Other people on the list will tell you a better way to do this; they
may even give you a Do While that works.<br>
<br>
Leisha Wharfield<br>
Decision Research<br>
Eugene, Oregon, USA<br>
<br>
De Brito, Stephane wrote:<br>
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<div class="Section1">
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Dear e-prime
experts,<o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">I am a novice in
the e-prime
world and would need a bit of help. I am working on a spatial
alternation task
(Blair et al., 2006, Neuropsychology, Vol 20, No 2, pp.153) but have
difficulties implementing it. <o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Task description:
<o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">the participant
sees 2 red
cars on each side of the screen and has to figure out which one is
baited with
a £20 note. The participant task is to learn that the side behind
which the
£20 note is located is being alternated after each correct response.
After each
correct response, a £20 note appear on the screen on the side selected.<o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">On the first
trial, both
sides are baited with a £20 note (so both responses are correct). For
the 2nd
trial the £20 note is located behind the side not chosen on the 1st
trial. On
each subsequent trial following a correct response, the other side is
baited.
After incorrect response, the £20 note remains on the same side until
the
participant makes a correct response.<o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">My questions are:<o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">1)Is it possible
to have 2
correct answer on the 1st trial? If yes, does it have to be implemented
with a
script or can it be done with the e- studio interface?<o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">2) I know that
for this
paradigm I need to use contingent branching and a "Do While" or
"Do Until" loop in the script. I have read the manual and tried
different scripts, but without success. Any advice would be very much
appreciated.<o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Best,<o:p></o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style=""><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">stephane<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">------------------------------------------</span></font><o:p></o:p></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Stephane De
Brito, PhD student<o:p></o:p></span></font></p>
<p class="MsoNormal"><st1:place w:st="on"><st1:PlaceType w:st="on"><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Institute</span></font></st1:PlaceType><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"> of <st1:PlaceName
w:st="on">Psychiatry</st1:PlaceName></span></font></st1:place><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">King's College <st1:City
w:st="on"><st1:place w:st="on">London</st1:place></st1:City><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Forensic Mental
Health Science Department </span></font><o:p></o:p></p>
<p class="MsoNormal"><st1:address w:st="on"><st1:Street w:st="on"><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Box</span></font></st1:Street><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"> P023</span></font></st1:address><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"> </span></font><o:p></o:p></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">De Crespigny Park
</span></font><o:p></o:p></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Denmark Hill </span></font><o:p></o:p></p>
<p class="MsoNormal"><st1:City w:st="on"><st1:place w:st="on"><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">London</span></font></st1:place></st1:City><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">
SE5 8AF</span></font><o:p></o:p></p>
<p class="MsoNormal"><st1:country-region w:st="on"><st1:place
w:st="on"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">United Kingdom</span></font></st1:place></st1:country-region><font
face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Tel: + 44 (0) 20
7848 0711<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">Fax: + 44 (0) 20
7848 0754<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span
style="font-size: 10pt; font-family: "Courier New";">website: <a
href="www.iop.kcl.ac.uk">www.iop.kcl.ac.uk</a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"><o:p> </o:p></span></font></p>
</div>
</blockquote>
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