Change detection task
Hello, I'm trying to figure out how to create a change detection task and am really struggling, I have 8 squares in a circular formation. I need the 8 squares to appear in 8 different colors randomly. I tried to do this with full factorial design of the 8 colors but It keeps crashing so I assume that is a mistake. I'm totally new to this please help me figure out what to do.
Just to specify: what I'm ultimately trying to do is display the 8 randomly colored squares, blank screen, then either the same display as before, or a display where only one square's color has change from previous. I hope this makes sense. As of now I'm totally clueless as to how to achieve this.
Comments
Update: Ok, so I succeeded in randomizing using shuffle_horiz, but now I don't know how to set correct and incorrect responses between the two displays (because it's shuffling all the time). Can anyone help?
Hi,
I tried to do this with full factorial design of the 8 colors but It keeps crashing so I assume that is a mistake.
Shuffling 8 positions over 8 positions with a complete factorial design leads to 8^8 possible combinations, exceeding the memory of your system probably.
After shuffling, you can add an inline_script, in which you specify the correct response based on some criterion. It is a bit hard to suggest specific code to you, because you don't really specify how your correct responses are defined. If you provide a bit more information, I will be able to help you better.
Eduard