Phonological Development

  •       Elimination of Phonological Processes in Typical Development

    Phonological processes are typically gone by these ages (in years ; months)   

    PHONOLOGICAL PROCESS

    EXAMPLE

    GONE BY APPROXIMATELY

    Pre-vocalic voicing

    pig = big

    3;0

    Word-final de-voicing

    pig = pick

    3;0

    Final consonant deletion

    comb = coe

    3;3

    Fronting

    car = tar

    ship = sip

    3;6

    Consonant harmony

    mine = mime

    kittycat = tittytat

    3;9

    Weak syllable deletion

    elephant = efant

    potato = tato

    television =tevision

    banana = nana

    4;0

    Cluster reduction

    spoon = poon

    train = chain

    clean = keen

    4;0

    Gliding of liquids

    run = one

    leg = weg

    leg = yeg

    5;0

    Stopping /f/

    fish = tish

    3;0

    Stopping /s/

    soap = dope

    3;0

    Stopping /v/

    very = berry

    3;6

    Stopping /z/

    zoo = doo

    3;6

    Stopping 'sh'

    shop = dop

    4;6

    Stopping 'j'

    jump = dump

    4;6

    Stopping 'ch'

    chair = tare

    4;6

    Stopping voiceless 'th'

    thing = ting

    5;0

    Stopping voiced 'th'

    them = dem

    5;0