I think you'd have to do something slightly clunky with code components
and a loop. Like add a loop to your flow surrounding a try_again
routine. That could have a number of reps that is set in a variable. If
the subject gets it correct nreps=0 (the loop won't run). In your
try_again routine you'd also need to add something to see if the answer
was /now/ correct and abort the loop.
http://www.psychopy.org/recipes/builderTerminateLoops.html
hope that helps
Jon
On 02/11/2012 19:47, Rae wrote:
> Hi All,
> First of all, I just wanted to say thank you for the program itself
> and for these forums-it has made programming much easier. I tried
> looking online and through previous questions in the group but I
> haven't seen an answer to this particular problem. I am sorry if I
> missed it.
> I am using the Builder view on a Mac with the newest version of
> PsychoPy (v1.75.01).
> I am trying to work an experiment so that participants get feedback if
> their responses were wrong (which I have done- the demo was really
> helpful!). But I want to add a component such that if the response was
> wrong, participants have to answer the correct answer in order to
> continue with the trials. I have it set up to store the last key and
> so I thought I might just extend the duration time of the feedback so
> that the participant could correct the response. However, then when
> the participant answers correctly, he/she has to wait for the feedback
> message to end. Is there a way to add a wait time feedback
> to erroneous responses or to differentially set the duration time
> based on correct/incorrect responses?
> Thank you for your help!
> -Rae
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Jonathan Peirce
Nottingham Visual Neuroscience
http://www.peirce.org.uk
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