Final answer:
The school founded in Santa Fe in 1962 that has been influential in modernist Native American art is likely the Institute of American Indian Arts (IAIA), although it is not explicitly named in the references provided.
Step-by-step explanation:
According to Berlo and Phillips, the school founded in Santa Fe in 1962 that has served as "the single most important institutional force in the development of modernist Native American art" is not named in the provided references.
However, based on the context one can infer that the school in question might be the Institute of American Indian Arts (IAIA). Established in 1962, this institution has played a significant role in the promotion and development of Native American art and artists.