Response window IAT

[bstewart]

I am running a response window Implicit Association Test, and I was wondering if there is a way to allow participants to respond before or after a stimulus disappears from the screen. I have found something that is close to this, but it has one big problem. I’ve used the following code:

stim loc time stim loc time stim

HomemakerGood-
WorkingwomanBad 0,0,1 0 $homemaker 0,0,0 rt:18,23,clear675 *


This code puts the categorization labels (Homemaker & Good) and (Working Woman & Bad) at the top of the screen, and then presents the picture or adjective, which is cleared after 675 milliseconds. So, far this is what I want. Participants can respond during or after the picture/adjective disappears. The problem occurs with the “clear” function. This clear function clears the entire screen and replaces it with a black screen. So, if participants do not respond within 675 milliseconds, they see a black screen, and importantly, they can no longer see their response options (homemaker & good, or workingwoman & bad) on the screen. Is there any way to clear just the picture/adjective stimulus and not the categorization labels? Or, instead of clearing the screen, is there a way to add something to mask the picture/adjective?