【摘要】 如果有两个成套的心理测验X和Y,分别由p和q个子测验组成,则它们之间的效度系数可以用ρ_XY=（1/r）sum from i=1 to r（λ_i）来度量,这里的λ_i是矩阵M=V_YY⁺V_YXV_XX⁺V_XY的第i个非零特征根。这样定义的广义的效度系数ρ_XY在p=q=1或p=1,q>1时就是通常的心理测验中的效度系数。这个ρ_TT还可以作为一个成套测验T之信度系数的度量。文章给出了一个实例。更多还原

【Abstract】 If two series of psychological tests X and Y involve p and q subtestsseparately, we can take ρ_XY=1/r sum from i=1 to r λ_i as the validity coefficient betweenX and Y, where λ_i is the ith nonzero characteristic root of matrixM=V_YY⁺V_YXV_XX⁺V_XY. When p=q=1 or p=1, q>1, the generalized correlationcoefficient ρ_XY is just the ordinary validity coefficient of psychologicaltests. This ρ_TT may be a measurement of the reliability of series test T.A practical example is in the paper.更多还原