Hans Baumgartner(1996)指出模型的拟合指数受其复杂度、估计参数的量、自由度的影响,不能为追求更高的拟合指数而随意修正模型,应结合理论和适当的适配情况来检定模型。 Hans Baumgartner, Christian Homburg. Applications of structural equation modeling in marketing and consumer research: A review[J].International Journal of Research in Marketing, 1996, 13(2):139-161.