Final answer:
Temperament refers to early appearing, stable individual differences in children that can be categorized as 'easy', 'difficult', and 'slow-to-warm-up'. The temperament of a child can influence their interaction with their environment and the type of parenting they receive.
Step-by-step explanation:
This concept was introduced by Thomas and Chess in 1977. Easy children demonstrate positive emotions, adapt well to change, and have good emotional regulation. Difficult children, on the other hand, demonstrate negative emotions, struggle with change, and have difficulty regulating their emotions. The temperament of a child can influence their interaction with their environment and the type of parenting they receive. Temperament refers to early appearing, stable individual differences in children that can be categorized as 'easy', 'difficult', and 'slow-to-warm-up'.