repeat practice trials after incorrect response

[jarvis24]

Currently, you can't jump backwards. Here is another way you can do it though..

Have duplicate trials. e.g., trial 1, 2, 3, 4, where 1 & 2 are identical and 3 & 4 are identical. If the respondent answers #1 correctly, they skip to #3 (the "real" next trial), otherwise, they go to #2 (a repetition of #1). Effectively, this repeats the trials *and* records the data for the failed first attempt. You can apply this logic indefinitely depending on how many attempt you want to allow. Finally, on the repeated trials, you could add an initial stimulus indicating that they were incorrect.

Note you could also do this *within* trials.. repeating stim, loc, time sets and skipping them out of the trial only when they respond with the correct answer, e.g., rt:57>2!,43

[correction 9/12/07: the syntax rt:57>2!,43 should be rt:57>-2,43. see editor's note below]

Does that make sense?