Individual differences have become increasingly important in the study of child development and language. However, despite the important role parents play in children’s language, no work has examined how parent personality impacts language development. The current study examines the impact of parent personality as well as child temperament on language development in 460 16- to 30-month-old children and 328 31- to 42-month-old children. Findings from both groups suggest multiple aspects of children’s language abilities are correlated with their parent’s personality. Specifically, parent consciousness, openness, and agreeableness positively correlate with child vocabulary size and other language abilities. Results also replicate and expand research on child temperament and language – child effortful control and surgency were positively correlated, and negative affect negatively correlated with most language abilities even after controlling for parent personality. Critically, parent and child traits appear to impact a child’s language abilities above and beyond well-known predictors of language, such as age.

中文翻译：

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在儿童语言发展中考虑父母的个性和孩子的气质

个体差异在儿童发展和语言研究中变得越来越重要。然而，尽管父母在孩子的语言中扮演着重要的角色，但没有研究过父母的个性如何影响语言发展。目前的研究调查了 460 名 16 至 30 个月大的儿童和 328 名 31 至 42 个月大的儿童的父母性格和儿童气质对语言发展的影响。两组的研究结果表明，儿童语言能力的多个方面与其父母的性格相关。具体而言，父母意识、开放性和随和性与孩子的词汇量和其他语言能力呈正相关。结果还复制和扩展了对儿童气质和语言的研究——儿童努力控制和冲动呈正相关，即使在控制了父母的性格之后，负面影响也与大多数语言能力呈负相关。至关重要的是，父母和孩子的特质似乎会影响孩子的语言能力超越众所周知的语言预测指标，例如年龄。