Running a new procedure after fixed number of trials

[Christina]

Thank you!!!

On Feb 11, 4:56 am, David Vinson <d.vin... at ucl.ac.uk> wrote:
> Oops I made a slight error in my previous mail - the inline code as
> written would run the procedure on every trial *except* 30...60...90
> etc.  = should be >.
>
> -dv
>
> On 11/02/2012 10:44, David Vinson wrote:
>
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> > Hi Christina,
>
> > This is a common situation, for example when inserting a break every N
> > trials.
>
> > The easiest way I've found to do it is to insert that procedure
> > ("NewProc") as if it occurred every trial, then add a Label
> > immediately after it ("JumpToLabel").  Then right before the procedure
> > add an inline to check the sample number and go to the "JumpToLabel"
> > (thus skipping past NewProc) unless it meets your requirements
>
> > If c.GetAttrib(c.GetAttrib("Running") & ".Sample")  MOD 30 = 0 Then
> >   goto JumpToLabel
> > End If
>
> > There's a sample experiment on the e-prime support site,
> >http://www.pstnet.com/support/samples.asp?Mode=View&SampleID=33
> > which does a similar thing, instead by running a procedure that sits
> > outside of the main experiment procedure (Unreferenced Objects) - in
> > this case the input masks would need to be set with an additional line
> > in inline code (see the sample InsertPause.es for more info).
>
> > One note - if your inserted procedure is something that logs data
> > (e.g. *.ACC etc) you may need to clear these values on instances in
> > which the event is skipped - otherwise they may inherit the values
> > from the last trial in which NewProc was run.
>
> > hope this helps,
> > -dv
>
> > On 10/02/2012 18:26, Christina B Young wrote:
> >> Hello,
> >> I am running into a problem that hopefully has a straight-forward
> >> solution.  In my experiment, I have 90 trials that occur in random
> >> order and the randomization is critical.  However, after the 30ths and
> >> 60th trial, I would like to add a new procedure, but then have the
> >> experiment continue with the original trials.  So the order would be:
> >> 29th trial, 30th trial, new procedure, 31st trial, 32nd trial, etc.
> >> Does anyone have any ideas on how to do this?  Thanks!
>
> >> Christina
>
> --
> David Vinson, Ph.D.
> Senior Postdoctoral Researcher
> Cognitive, Perceptual and Brain Sciences Research Department
> University College London
> 26 Bedford Way, London WC1H 0AP
> Tel +44 (0)20 7679 5311  (UCL internal ext. 25311)

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