An adjustment made to the numbers of degrees of freedom, in analysis of variance (see ANOVA) when it is known that the observations do not obey the usual assumptions of being uncorrelated with constant variance.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。