Weizenbaum Institute：移动媒体使用多维测量（英文版）

Just like all types of media use, mobile media use is usually measured using retrospective, self-reported indications of quanitity in the form of duration and frequency. This is not only problematic due to the fact that people misjudge their own use to a great extent, but also because theoretical approaches predominantly suggest that mere contact is not sufficient for the description of media use. This especially holds for mobile media use, as specific contact episodes are not easily distingu