The Personality Differentiation by Intelligence Hypothesis (PDIH) predicts larger trait-variances, and smaller across-trait covariances for individuals with higher intelligence. We tested these predictions using multiple-group confirmatory factor analyses (MG-CFA), while controlling for the potential confound of systematic method variance related to reversed items using a correlated trait, correlated method (CTCM) approach. Participants between the ages of 62 and 68 completed measures of personality (Mini-IPIP: Donnellan et al., 2006) and intelligence (Raven APM-12: Arthur & Day, 1994). After establishing strict measurement invariance (MI), we found no support for larger variances, and only minor support for lower trait covariances as related to higher intelligence. Overall, the findings provide scant support for the PDIH when controlling for systematic method variance.

智力假设的人格分化 (PDIH) 预测具有较高智力的个体较大的特征方差和较小的跨特征协方差。我们使用多组验证性因素分析 (MG-CFA) 测试了这些预测，同时使用相关性状、相关方法 (CTCM) 方法控制与反向项目相关的系统方法方差的潜在混淆。62 至 68 岁的参与者完成了人格（Mini-IPIP：Donnellan 等人，2006 年）和智力（Raven APM-12：Arthur & Day，1994 年）的测量。在建立严格的测量不变性 (MI) 后，我们发现不支持较大的方差，仅支持与较高智力相关的较低特征协方差。总体，