Phonological Speech Sound Difficulties- When to go to Speech and Language Therapy
You may have noticed that your child has difficulty pronouncing some sounds and may do things such as substitute one sound for another, leave sounds out, add on sounds, or change a sound. This can make it difficult for people to understand your child and can impact on your childโs confidence, socialisation with other children, and motivation to communicate.
It is normal for young children to say sounds incorrectly, and it is an indication that their speech sound systems are developing and maturing. There are some typical โprocessesโ that children will do, referred to as โnatural phonological processesโ. These processes have age norms which indicate the age at which a โtypically developingโ child will stop doing them by. They include the following:
Natural Phonological Process | Age of Elimination |
Reduplication When a syllable is repeated e.g. โbottleโ ร โbabaโ
|
2;0 |
Pre-vocalic voicing
When a voiceless consonant at the start of a word like /p/ or /t/ is substituted with a voiced consonant like /b/ or /d/ e.g. โpinkโ ร โbinkโ, โtummyโ ร โdummyโ |
3;0 |
Word-final devoicing When a voiced consonant at the end of a word like /b/ or /d/ is substituted with a voiceless consonant like /p/ or /t/ e.g. โbibโ ร โbipโ, โmadโ ร โmatโ
|
3;0 |
Final consonant deletion When the consonant at the end of the word is left off e.g. โsunโ ร โsuโ
|
3;3 |
Velar fronting When back sounds such as /k/ and /g/ are replaced with front sounds such as /t/ and /d/ e.g. โkatโ ร โtatโ, โgoโ ร โdoโ, โbackโ ร โbatโ โbagโ ร โbadโ
|
3;6 |
Palatal fronting When sounds made by the tongue touching the roof of the mouth such as /sh/ are replaced with front sounds such as /s/ e.g/ โshoeโ ร โsuโ, โfishโ ร โfisโ
|
3;9 |
Stopping /f,s/ When /f/ and /s/ is replaced with /p/ or /t/ e.g. โfanโ ร โpanโ, โsatโ ร โtatโ, โpassโ ร โpatโ
|
3;0 |
Stopping /v,z/ When /v/ and /z/ is replaced with /b/ or /d/ e.g. โvanโ ร โbanโ โzipโ ร โdipโ
|
3;6 |
Stopping /sh, ch/ j When /sh/ /ch/ and j sounds are replaced with sounds such as /t/ /b/ /d/ and /p/ e.g. โshopโ ร โtopโ โchipโ ร โbipโ โjamโ ร โdamโ
|
4;6 |
Weak syllable deletion When the unstressed, or โweakโ syllable is deleted from the word e.g. โbananaโ ร โnanaโ
|
4;0 |
Cluster reduction When two consonants together, referred to as a cluster, are reduced to one consonant by itself, referred to as a singleton. e.g. โcrashโ ร โcashโ, โsmileโ ร โmileโ
|
4;0 |
Consonant harmony When there are 2 consonants in separate places in a word, and one consonant changes to be the same as the other e.g. โcoatโ ร โkoakโ, โtopโ ร โpopโ
|
4;0 |
Stopping /th/ When /th/ sounds are replaced with /t/ or /d/ e.g. โthinkโ ร โtinkโ โthatโ ร โdatโ
|
5;0 |
Gliding When /r/ becomes a /w/ and /l/ becomes a /w/ or y sound e.g. โrabbitโ ร โwabitโ โlickโ ร โyickโ
|
5;0-6;0 |
Bowen, C. (2011)
If your child is still doing some of these processes a significant time after the appropriate age of elimination, it is likely that your child has a โphonological (speech sound) delayโ.
In addition to these processes there are some atypical processes which children may present with and are not seen in typically developing children. If your child presents with some of the following patterns it is likely they have a โphonological disorderโ (i.e. โspeech sound disorderโ).
Atypical Pattern | Example |
Alveolar backing
When front stop sounds such as /t/ and /d/ are replaced with back sounds such as /k/ and /g/ |
โteaโ ร โkeeโ โbatโ ร โbakโ โmadโ ร โmagโ โdogโ ร โgogโ
|
Spirantisation When stop sounds such as /p/ /t/ /d/ /b/ are replaced with fricative sound such as /s/ /f/ /v/ /z/
|
โpanโ ร โfanโ โtapโ ร โtafโ โdollโ ร โsollโ |
Gliding of fricatives When fricative sounds such as /f/ /s/ /v/ /z/ are replaced with glide sounds such as /r/ /w/ /l/ and y sound
|
โfallโ ร โyallโ
โsunโ ร โwunโ |
Systematic sound preference When a child substitutes multiple sounds for one specific sound
|
โgive it to meโ ร โdi di do deโ |
Initial consonant deletion When the consonant at the start of the word is deleted
|
โballโ ร โallโ |
Consonant insertion When a consonant is put in before or after a vowel
|
โeyeโ ร โjeyeโ |
Sequencing errors
When a child has difficulty sequencing and co-ordinating words with more than one syllable |
โelephantโ ร โefelintโ โumbrellaโ ร โbumrelaโ
|
Dodd 2013
It is important that if you think your child may be presenting with a phonological delay or disorder you attend Speech and Language Therapy for intervention. Approximately 2 children in every class of 30 will have speech difficulties (Norbury 2016), and the impact of speech sound difficulties can be long lasting, with evidence suggesting that children need to be intelligible by 5 or they will have difficulty with literacy and subsequent academic achievement (Hodson 2015).
Direct Speech and Language Therapy for the treatment of speech sound difficulties is appropriate for children aged 3+. Intervention before this age has shown to not be valid nor reliable, and prior to this age childrenโs speech inventory is constantly developing and changing. Your Speech and Language Therapist will formally or informally assess your childโs speech production and for an intervention plan which is individualistic to your childโs needs and incorporates personal goals into therapy.
In addition to this, you can facilitate your child at home in their speech development in the following ways:
- Listening carefully to your child and waiting for them to tell you something, whatever way they can. This can include gestures, such as pointing, to help get their message across.
- Modelling clear speech e.g. child: โlook at the tatโ parent: โyes, thereโs a catโ
- Repeat what the child has said so they can listen to the correct production e.g. child: โthatโs my tupโ parent: โyes, that is your c Itโs a red cup. You drink from a cupโ.
- Not asking them to repeat words or sentences after you. They may not be ready to attempt to use the sound and this may affect their confidence.
- Playing games involving sounds and rhymes e.g. I spy, Simon Says.
Most importantly:
If you donโt understand โ donโt pretend to!
Reassure the child and acknowledge that talking can be difficult e.g. โI think you are trying to say something hard and I am not sure what it is. Maybe we can find out laterโ. Remember it takes time to develop a new speech sound and use it in conversation. Be patient and practise regularly!
Written By
Sarah Gorman, Senior Speech & Language Therapist at Sensational Kids, Kildare
Copyright Sensational Kids CLG 2018