Hi,
You don’t see the feedback text because your trial moves to the next one immediately after you print the text. How do you want the participant to move to the next trial? By pressing another key? By clicking a “Next” button? For example, if you want a timer, you could simply add newTimer(3000).start().wait() before the closing parenthesis of newTrial (just don’t forget to add a comma before it to separate it from the preceding block of commands)
Jeremy