Analysis of the variation the value of the exponent : .

is the number of individuals analyzed for a given role class and language category that have at least five time points (for consistency with the minimum number of points of the correlation analysis; see Methods). For each individual, four statistics concerning are computed: the minimum (), the mean (), the maximum () and the standard deviation () are calculated over all his/her transcripts. The mean plus/minus standard deviation of these four statistics is shown for each role class and language category (when , a standard deviation of is assumed).

该数值为针对特定角色类别与语言类别、且至少拥有5个时间点的分析个体总数，该设置旨在与相关分析的最小点数要求保持一致，详见方法章节。针对每个个体，将计算与（）相关的四项统计量：对其全部转录文本分别计算最小值（）、均值（）、最大值（）与标准差（）。针对每个角色类别与语言类别，将展示这四项统计量的均值±（）标准差；当（）时，默认标准差为（）。