Method Effects, Measurement Error, and Substantive Conclusions
回顾了使用多特质多方法设计的研究，发现共同方法变异仅解释18%的方差，低于以往观点；同时指出测量误差的衰减效应几乎完全抵消了共同方法变异对观测关系的膨胀效应。
Common method variance is routinely viewed as a pervasive problem in organizational research, one that undermines good science and biases empirical conclusions. The authors review research that has used multitrait-multimethod (MTMM) designs to estimate the magnitude of common method variance in organizational research. The results of this study show that method variance accounts for less variance (18%) than has been suggested by previous reviews. The authors also consider simultaneously the attenuating effect of measurement error with the inflationary effect of common method variance on observed relationships. Results indicate that although common method variance does have an inflationary effect on observed relationships, this effect is almost completely offset by the attenuating effect of measurement error.