Thomas and Chess identified nine dimensions of temperament: activity level, regularity, approach, adaptability, intensity, sensory threshold, mood, distractibility and persistence.

托马确定了气质的九个维度：活动水平、规律性、趋性、适应性、强度、感觉值、、注意力分散持久性。

Rothbart explored other temperamental dimensions such as soothability and fear, as well as redefining the dimension of 'approach' as a baby's positive excitement and rapid advance toward new situations.

罗巴特探索了其维度，如安抚性恐惧，并重新定义了“趋性”维度，即婴儿对新况积极兴奋快速推进的倾向度。