What aspects are typically measured to assess temperament in infants?

The assessment of temperament in infants often focuses on specific behavioral characteristics that reflect their individual differences in mood, activity levels, and emotional responses. The correct choice highlights aspects such as activity level, irritability, and social responsiveness, which are fundamental components of a child's temperament.

Activity level refers to the overall intensity and pace of an infant's movements and actions, which can indicate the child’s energy levels and preferred style of engagement with the world. Irritability involves the child’s ability to tolerate frustration or discomfort, showing how easily they become upset or agitated. Social responsiveness encompasses how the infant interacts with caregivers and peers, demonstrating their comfort in social settings and willingness to engage with others.

By assessing these aspects, researchers and caregivers can gain insights into an infant's temperament patterns, which can influence their developmental trajectory and how they may respond to different environments and parenting styles. Understanding these temperament traits helps in tailoring approaches to meet the unique needs of each child.