The Origin of Personality by Alexander Thomas, Stella Chess and Herbert G. Birch
Scientific American, pp 102-109, 1970
一、孩子先天特质（托马斯、切斯理论，九个维度）
（1）the level and extent of motor activity; 机体活动的程度和范围。
（2）the rhythmicity, or degree of regularity, of functions such as eating, elimination and the cycle of sleeping and wakefulness; 节律性：表现在吃饭、排便、睡眠和醒来的规律程度。
（3）the response to a new object or person, in terms of whether the child accepts the new experience or withdraws from it; 趋避性：儿童对新事物或人是接受或是回避。
（4）the adaptability of behavior to changes in the environment; 适应度：对待环境改变的行为。
（5）the threshold, or sensitivity, to stimuli; 对刺激的敏感程度
（6）the intensity, or energy level, of responses; 反应的强度
（7）the child's general mood or "disposition", whether cheerful or given to crying, pleasant or cranky, friendly or unfriendly; 儿童的一般情绪，爱哭还是高兴、愉快还是易怒，友好还是不友好。
（8）the degree of the child's distractibility from what he is doing; 孩子注意力容易被分散的程度
（9）the span of the child's attention and his persistence in an activity. 孩子注意力的广度和持续性
