Dta for: Dual Effects of TL in We-media Videos（308+2670）

In order to obtain accurate data on the time length of videos, it is necessary for investigators to measure customer satisfaction and participation by providing videos of different types and different time lengths as stimuli, so it seems that a rigorous and complex experiment would be inevitable. But fortunately, Bilibili has in fact provided a large number of videos of various types and time lengths, which are attached with relevant and reliable data (with a large enough number of views), hence can be considered a natural experiment of this research.

为获取精准的视频时长相关数据，研究者需通过提供不同类型、不同时长的视频作为实验刺激材料，以测量用户满意度与参与度，故而严谨且复杂的人工实验似乎在所难免。但所幸哔哩哔哩（Bilibili）现已积累了海量涵盖各类题材与时长的视频资源，且附带相关且可靠的统计数据（播放量规模可观），因此可将其视为本研究的天然实验数据源。