Developmental milestones

Question 1

When do children begin to produce speech

Answer 1

About one year

Question 2

By six months, what are children able to do?

Answer 2

Recognize their own name

Question 3

What do children’s sentences look like the the beginning of their third year?

Answer 3

Two- three words, affirmative, declarative and lack of grammatical endings such as plural markers and past tense markers

Question 4

What appears in the third and fourth year?

Answer 4

Complex multi- clause sentences

Question 5

When is it commonly said that language acquisition is completely and why?

Answer 5

During the first four years of life because nothing is missing linguistically from a four year old.

Question 6

(in weeks) when do infants start to coo

Answer 6

8 weeks

Question 7

What is the biggest development in the second year?

Answer 7

Vocabulary

Question 8

What undergoes changes in the second year?

Answer 8

Articulation abilities and underlying phonological representation

Question 9

What show most obvoius in the third year of a child’s life

Answer 9

The mastery of the grammar of their language

Question 10

When does laughter emerge in infants?

Answer 10

16 weeks

Question 11

What appears around the same time that laughter does?

Answer 11

Vocal play

Question 12

When does reduplicated babbling being?

Answer 12

36 weeks

Question 13

When does non reduplicated babbling appear?

Answer 13

48 weeks

Question 14

As early as four weeks what do infants have the ability to do?

Answer 14

They have the ability to discriminate between vowel and consonant contrasts, even between those that are not in their ambient language

Question 15

When do infant hone in on the specific phonemes for their target language?

Answer 15

By 10-12 months. (they still can do it at between the ages of 6-8 months)

Question 16

When are the effects of the target language on vowel perception usually shown?

Answer 16

As young as six months. The ability to distinguish between vowels declines before consonants

Question 17

When do the effects of tone perception appear? And does this apply to all languages?

Answer 17

By nine months English speaking children have declined in their ability to distinguish between different tones. but this is not turn for children whose target language is a tonal language, such as Chinese

Question 18

Are the effects of the early experience in the target language absolute, once the skills of distinguishing other phonetic features are gone are they lost?

Answer 18

No this is not absolute - some contrast still remain easy and others can be improved with training.

Question 19

When does the first word appear and what is this related to?

Answer 19

The first word appears around the child’s first birthday which is around the same time they have finished honing in on all of the phonetical relevant stuff to their target language

Question 20

Is phonetic learning complete on the production of the first word?

Answer 20

No… Children are still reorganizing their phonemic inventory well into their second year, but it is focused on their target language

Question 21

When do children sound like adults in their phonology?

Answer 21

By age seven