Clear Feedback Keyword
Parameter and switch to set <cfb ""> <nfbt> <wfb ""> <tlfb ""> effectively clearing the display after a subject responds instead of trying to use Response Contingency to do it.
<clfb> sets all the feedback messages to blank spaces and displays them allowing a response contingent display so that the screen is cleared when the subject responds. I got tired of everyone wanting to turn response contingency on just to do this and having all of the
concommitant problems that a response contingent item file has. Setting
<nfb> doesn't display any feedback at all, the display is not erased by the subject's response.