一元回归分析常用效应量为复相关系数R²，它表明了回归方程对因变量的解释能力。\\A commonly used effect size for univariate regression analysis is the compound correlation coefficient R², which indicates the ability of the regression equation to explain the dependent variable.

R²公式：
或者

复相关效应量会过高估计自变量对因变量解释能力，现在常用校正复相关系数R²_adj作为效应量。\\Complex correlation effect sizes can overestimate the ability of the independent variable to explain the dependent variable, and it is now common to use Calibrated Complex Correlation CoefficientR²_adj corrected complex correlation coefficients as effect sizes.

R²_adj公式：