Final answer:
People perform better in visual search tasks when they are exposed to repeated layouts, due to implicit learning. Familiar layouts help individuals to search and navigate more efficiently.
Step-by-step explanation:
The effect of repeated layouts on people's performance in visual search tasks is that people perform significantly better when the layout is familiar or previously encountered. This finding is likely due to implicit learning, where individuals learn the layout without consciously trying to memorize it. Such a phenomenon demonstrates that familiarity with visual elements can enhance our ability to navigate and search within a given space efficiently. As these experiments show, when layouts are not random and instead follow a predictable pattern or repetition, it supports quicker and more accurate visual search performance, aligning with principles outlined in cognitive psychology.