probability of a stimulus

[Sara Agosta]

yes!
thank you!
Sara

2009/6/18 liwenna <liwenna at gmail.com>

>
> You got it working?
>
> On Jun 18, 4:33 pm, Sara Agosta <sara.ago... at gmail.com> wrote:
> > thank you!
> > Sara
> >
> > 2009/6/18 David Vinson <d.vin... at ucl.ac.uk>
>  >
> >
> >
> > > saraag wrote:
> > > > I have present one stimulus on the slide display, but the choice will
> > > > be between two stimuli, with a probability of 66% for stimulus1 and
> > > > 34% for stimulus2.
> >
> > > One way to do this would be to draw this item from a List containing
> two
> > > items:
> > > stimulus1 (weight 66) and stimulus2 (weight 34).  If you want exactly
> 66%
> > > and
> > > 34% you could sample without replacement from this List; if
> approximately
> > > 66/34
> > > is good enough, you could sample with replacement.
> >
> > > -dpv
> >
>

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