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    FIRST YEARS > Listening & Spoken Language Development & Intervention > Developmental Ages for the Suppression of Phonological Processes
Source: Tracy Brading, M.A., CCC-SLP (by permission)
Based on ALPHA (Lowe, 2000) Norms

TO READ:

"By the age of ___________, 90% of children have suppressed the phonological process of _________________."
Developmental Ages for the Suppression of Phonological Processes
 
Age 3 AF = Affrication (e.g. "cho" for "show")
BA = Backing (e.g. "buk" for "bus")
VC = Voicing Change (e.g. "dief" for "thief")
Age 6 AL = Alveolarization (e.g. "tum" for "thumb")
CR = Cluster Reduction (e.g. "poon" for "spoon")
CS = Cluster Simplification (e.g. "twa" for "tray")
GL = Gliding (e.g. "wug" for "rug")
SD = Stridency Deletion (e.g. "but" for "bus")
ST = Stopping (e.g. "toup" for "soup")
VO = Vowelization (e.g. "penco" for "pencil")
Age 4 CD = Consonant Deletion (e.g. "bu" for "boot")
DE = Deaffrication (e.g. "sew" for "chew")
Age 8 LA = Labialization (e.g. "fad" for "sad")
Age 5 FR = Fronting (e.g. "tey" for "key")
SY = Syllable Deletion (e.g. "mado" for "tomato")
Reference:
  • Lowe, R.J.  (2000) ALPHA (Assessment Link Between Phonology and Articulation Phonology) Revised Test of Phonology.  (2000)  Mifflinville, PA: ALPHA Speech & Language Resources
Bobby WorldWide Approved 508
07/05/05

Alexander Graham Bell Association | UNC-CH Division of Speech and Hearing Sciences

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