I am doing an IAT task and I want a Red Cross to appear under the stimulus for every incorrect response and then make it disappear after the response is corrected.
How can I do that?
You need to present a feedback that is based on an incorrect response. This feedback needs two actions:
The first one will present another event that draws the red cross
The second action will restart the trial
For this feedback to work, you also need to tell SuperLab what is the correct response (Event Editor ➜ Correct Response tab).