每日英译中，来自每日翻译

·英译中：

原文：

Psychologists who study babies usually refer to “temperament” rather than personality and one of the first ever investigations in this area was called the New York Longitudinal Study, launched in the 1950s, for which the wife and husband team of Stella Chess and Alexander Thomas began observing 133 children from their birth up to age 30, as well as interviewing their parents. Based on their findings, these researchers proposed that there are nine different facets of infant temperament, including activity level, mood and distractibility. They also noted that scores on different facets tended to cluster and, in a sign of a less politically correct age, they described three categories: “easy children”, “difficult children” and “slow to warm up” children.

译文：

研究婴儿的心理学家通常所用的术语是“气质”（temperament）而非“个性” （personality）。在这一领域的最早的一项调查是在20世纪50年代开始的纽约纵向研究（New York Longitudinal Study）。亚历山大·托马斯（Alexander Thomas）和斯特拉·切斯（Stella Chess）夫妇观察了133名儿童从出生到30岁之间的生活，同时还和他们的父母进行访谈。基于这些观察和研究，他们提出婴儿气质的九种不同维度，包括活跃水平、心情和关注力。他们还认为不同维度的分数有趋同倾向。他们以政治不太正确的方式把儿童分为三类：“简单的儿童”、“麻烦的儿童”和“慢热型”儿童。