Question

when is temperament noticeable in infants?

a.) 6 months
b.) 9 months
c.) 3 months
d.) soon after birth

Explanation:

Define temperament in developmental psychology

Temperament refers to the biologically based, early-appearing individual differences in behavioral style, emotional reactivity, and characteristic ways of responding to the environment. Because it is rooted in genetics and neurobiology, it serves as the foundation for later personality development.

Identify when temperament becomes noticeable

Since temperament is biologically and genetically determined, individual differences in reactivity (such as fussiness, activity level, and sootheability) are observable almost immediately. These traits can be detected by parents and researchers very early in life, specifically soon after birth.

Evaluate the given options

• a.) 6 months: Incorrect. While temperament becomes more stable and structured by this age, it is noticeable much earlier.
• b.) 9 months: Incorrect. This is too late; distinct behavioral styles are evident long before 9 months.
• c.) 3 months: Incorrect. Although very clear patterns are established by 3 months, initial signs are already present earlier.
• d.) Soon after birth: Correct. Because temperament is innate and biological, differences in crying, activity, and response to stimuli are noticeable shortly after birth.

Answer:

• (a.) 6 months
• (b.) 9 months
• (c.) 3 months
• (d.) Soon after birth (Correct answer)