A separate American diffusionist school of thought, led by Clark Wissler and Alfred Kroeber (both students of Boas), also arose in the first few decades of the twentieth century.

• 二十世纪的头几十年，美国也出现了一个相对独立的传播学派，其领军人物是ClarkWissler和AlfredKroeber（二者皆为Boas学生）。