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Color Matching Experiment

Hi all,

I am trying to have participants match the color of an object to the perceived color of an illusion - specifically, White’s Illusion. In White’s Illusion, smaller gray bars are superimposed over interlacing black and white bars, which alter the perceived shade of gray of the smaller gray bars. I am trying to have participants match the color of an object with their perceived level of gray. How might I go about doing this in builder? Do I use staircase?

I don’t know, but probably best to start with the methodological literature before worrying about the implementation details. e.g.

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