conflict for feedback element?
in OpenSesame
Hi I am using a feedback for right or wrong in a trial and then a feedback at the end of the whole exp for Accuracy and RTs. When I have both of these as feedback elements (as created by OpenSesame) the second feedback gives me an error of undefined Acc and RT, while if I replace the trial right-wrong feedback with a sketchpad then the exp. works fine. Am I doing something wrong?
Comments
Hi,
By default, the feedback item resets feedback variables. This needs to be turned off (in the trial sequence) if you want to have feedback at the end of your experiment I think.
Cheers
Josh
Tried that one but still resulted in an overall undefined Acc and Avg_RT
Hi Argiro,
I don't think you can have both, a trial and an overall feedback with the same variables just because one thing can't represent two different values. If you create overall variables yourself and use them in the final feedback item, it should work. So for example on every trial, you add the
accandrtto a list of all RTs and accuracies and divide them by the total number of elements.Eduard
Hi Eduard
My issue is not the variables but actually the "ready-made" feedback item of OpenSesame. If this type of form has to be used differently when included in a single experiment then maybe the instructions or a tutorial to be provided for the newbies? We found a way to work around it but not with the ready-made feedback item. Hope this makes sense.
Hi,
The feedback item does not need to be used differently per se. The one only special thing about the feedback item that distinguishes it from a normal
sketchpadis the fact, that the variables it is showing are only computed in therun_phaseof an experiment. This makes it possible that the feedback contains stuff that happened in the run phase of the current trial (see here). If you used a normalsketchpadyour accuracy and avg_rt would beNAs. The point I want to make here is that the default settings of the feedback item are not set in stone. If you have a standard experiment that uses the standard procedure to compute accuracy and RTs, you don't need to adapt it. However, if you define those variables yourself, you also need to change the variables in thefeedbackitem. In theory, it doesn't matter when or how often you use it. Its behaviour is always the same.I hope this clears things up.
Eduard