replacement for wrong trials

[David McFarlane]

Oh, the StudyRecall example might also help out here.


>Marina,
>
>Stock reminder:  1) I do not work for PST.  2) PST's trained staff 
>takes any and all questions at 
>http://support.pstnet.com/e%2Dprime/support/login.asp , and they 
>strive to respond to all requests in 24-48 hours -- this is pretty 
>much their substitute for proper documentation, so make full use of 
>it.  3) If you do get an answer from PST Web Support, please extend 
>the courtesy of posting their reply back here for the sake of others.
>
>That said, here is my take...
>
>So you want to rerun only trials with incorrect responses until the 
>subject responds correctly?  I don't see any way to do that without 
>some inline code.  For examples, look at the CriterionForExit and 
>and RerunErrors examples downloadable from the PST web site 
>(warning:  in general PST programmers are pretty sloppy, so do not 
>take these as models of proper programming practice, take them only 
>as rough exercises to illustrate certain features and then abstract 
>from there).
>
>-- David McFarlane, Professional Faultfinder
>"When all is said and told, the 'naturalness' with which we use our 
>native tongues boils down to the ease with which we can use them for 
>making statements the nonsense of which is not obvious."  -- Edsger 
>W. Dijkstra, "On the foolishness of 'natural language programming'" 
>(http://www.cs.utexas.edu/users/EWD/transcriptions/EWD06xx/EWD667.html)
>
>
>>Hi, I'm intersted in replacing only wrong trials in a block. The block
>>is setted to chose trials randomly (without replacement). My goal is
>>to have the same number of correct trials for each condition, since
>>I'm also collecting EEG data and it would be better for comparisons of
>>the electrophysiological data to have the same number of epochs. I'm
>>collecting reaction time data from all of the 10 hand fingers, and
>>it's already known (from previous experiments we've made) that the
>>probability of wrong responses are different for each finger. Is there
>>an easy way to do it? A hard one would be usefull as well, but my
>>programming skills are (very) limmited.
>>
>>I deeply appreciate your help,
>>
>>Marina

-- 
You received this message because you are subscribed to the Google Groups "E-Prime" group.
To post to this group, send email to e-prime at googlegroups.com.
To unsubscribe from this group, send email to e-prime+unsubscribe at googlegroups.com.
For more options, visit this group at http://groups.google.com/group/e-prime?hl=en.