人类社会进入到20世纪,青年的状况发生了巨大变化。青年,作为一个具体地、历史地、存在着的社会实体和社会政治生活领域里的一种独立力量,表现出了愈来愈明显的普遍性的倾向。从某种意义上说,这种令人兴奋与不安的现实,促进了单学科青年研究的形成和发展。这类研究,首先在心理学领域内得以显现。尔后,文化人类学、社会心理学及二次世界大战 As human society entered the 20th century, the situation of the youth has undergone tremendous changes. As an independent force in the specific, historical, existing social entities and social and political life areas, young people have shown a tendency to become more and more universal. In a sense, this exciting and disturbing reality has promoted the formation and development of single-subject youth studies. This kind of research, first appeared in the field of psychology. Later, cultural anthropology, social psychology and World War II