Age of phonological process elimination

Question 1

Phonological processes eliminated by 2.5 years

Answer 1

Denazalization

Question 2

Phonological processes eliminated by 3 years

Answer 2

Stopping of /f/ and /s/
Affrication 
Assimilation 
Final consonant devoicing 
Reduplication 
Final consonant deletion

Question 3

Phonological processes eliminated by 3.5 years

Answer 3

Fronting

Question 4

Phonological processes eliminated by 4 years

Answer 4

Deaffrication
Cluster reduction without /s/
Weak syllable deletion

Question 5

Phonological processes eliminated by 5 years

Answer 5

Alveloarization
Depalatalization
Cluster reduction with /s/

Question 6

Phonological processes eliminated by 6 years

Answer 6

Gliding
Labialization
Prevocalic voicing

Question 7

Phonological processes eliminated by 8 years

Answer 7

Epenthesis

Question 8

Phonological processes seen in severe delays

Answer 8

Backing

Initial consonant deletion