Loehlin John C
Department of Psychology, University of Texas, Austin 78712, USA.
Psychol Rev. 2002 Oct;109(4):754-8; discussion 764-71. doi: 10.1037/0033-295x.109.4.754.
A generalized Dickens-Flynn (2001) model is presented and various simulations undertaken with it to give readers a better sense of the properties of such models. In particular, the inclusion of moderate degrees of persistence of intelligence and intelligence-relevant environment did not have much impact on the overall behavior of the models, although more extreme degrees of persistence did. Even moderate degrees, however, affected the internal relationships in the models. The importance of specifying the time scale and of addressing developmental aspects of the models is emphasized. It is noted that the translation of individual changes to population changes is not a simple matter in resolving the "IQ paradox" of large population gains over time in intelligence test scores.
本文提出了一个广义的狄更斯-弗林（2001）模型，并利用该模型进行了各种模拟，以便让读者更好地了解此类模型的特性。特别是，纳入适度程度的智力持久性和与智力相关的环境，对模型的整体行为影响不大，不过更极端程度的持久性则有影响。然而，即使是适度程度，也会影响模型内部的关系。强调了指定时间尺度和处理模型发展方面的重要性。需要注意的是，在解决智力测试分数随时间推移在大量人群中大幅提高这一“智商悖论”时，将个体变化转化为群体变化并非易事。
