Final answer:
Keller and Schoene's study concluded that student effort had a positive influence on course evaluations and learning outcomes.
However, Geller and Huchra conducted a well-known study that found galaxies are distributed in clusters, forming a large-scale web-like structure in the universe.
Step-by-step explanation:
The conclusion of Keller and Schoene's study has not been specified in the provided information. However, a discussion related to the work, research, and interviews involving Geller and Huchra, which may have been mistaken as Keller and Schoene, can be accessed through NOVA video and OpenStax links. Their pioneering study in astronomy revealed a large-scale structure of galaxies in the universe, notably the 'Great Wall' of galaxies, highlighting that galaxies are not distributed randomly but rather in clusters, forming a large-scale web-like structure. Research by Geller and Huchra led to further studies in the field, expanding our knowledge of the cosmos.