Which of the following is true of infants' ability to differentiate sounds?
A) Infants learn to ignore small, meaningless variations in the sounds of their native language by the age of two months.
B) Infants can discriminate the sounds of their parent's voices by 3½ months of age.
C) By the age of one week, infants perceive differences between speech sounds that are highly similar.
D) By the age of one month, infants reliably discriminate three-syllable words such as marana and
Malana.

Question

Which of the following is true of infants' ability to differentiate sounds?​
A) Infants learn to ignore small, meaningless variations in the sounds of their native language by the age of two months.
B) Infants can discriminate the sounds of their parent's voices by 3½ months of age.
C) By the age of one week, infants perceive differences between speech sounds that are highly similar.
D) By the age of one month, infants reliably discriminate three-syllable words such as marana and
Malana.

Quizplus · Accepted Answer

Research shows that infants can discriminate the sounds of their parent's voices by 3½ months of age.

Answer: C 
 Infants as young as one week old can perceive and differentiate between speech sounds that are highly similar.

Option A is incorrect as research suggests that infants need more time to learn to ignore small variations in their native language. Option D is incorrect as infants are not capable of reliably discriminating three-syllable words at the age of one month.

Which of the Following Is True of Infants' Ability to Differentiate