本文利用包含有大五人格特征量表的2018年中国家庭追踪调查（CFPS）数据，研究母亲大五人格特征对其教育时间投入的影响。除了简单OLS模型，我们根据不同因变量的特征，分别使用了泊松回归模型、负二项回归模型、Probit模型和Tobit模型对原结果进行补充和对比。研究结果显示：母亲的部分大五人格特征能够在一定程度上对母亲的教育时间投入产生影响，且回归结果呈现较大的城乡差异。在农村样本中，母亲的严谨性人格特征对母亲每周辅导时长有正向的影响。在城市样本中，高外向性人格的母亲和小孩的交流显著更多，高开放性人格的母亲辅导小孩作业的概率更高。OLS模型结果和其他模型的结果相比，差距均较小。

Using 2018 China Family Panel Studies (CFPS) data，we analyze the impacts of maternal ‘Big Five’ personality on parental time investments. According to the characteristics of three dependent variables, we use the Poisson regression, Negative binomial regression, Probit model and Tobit model as complements of simple OLS estimates. Results show that part of the ‘Big Five’ personality traits of mother do have some influences on maternal time investments, and part of the results show considerable differences between the urban and rural. Mothers high in conscientiousness tend to tutor their child longer time in the rural sample. In the urban sample, mothers high in extraversion communicate more frequently with child and mothers high in openness are more likely to help their child with homework. Differences between the results of OLS estimates and other models are small.