There have been some human studies on ARC 1 previously, I expect there will be more in the future. See this paper from 2021, which was one of the earliest works

There have been some human studies on ARC 1 previously, I expect there will be more in the future. See this paper from 2021, which was one of the earliest works in this direction: https://arxiv.org/abs/2103.05823 https://arxiv.org/abs/2103.05823