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Effectiveness of Minimal Pair Contrast Therapy in Children w
Transcript of Effectiveness of Minimal Pair Contrast Therapy in Children w
Presenters: Charlotte Garrett, Katelynn Hill, Cecilia Morales, and Hannah Ritchie
- A child's speech production errors should be phonological rather than articulatory and have a mild or mild-to-moderate impairment.
- It is useful with children who show multiple misarticulations or phonological patterns that are not consistent with the adult form.
- Williams et al. (2010), stated that the minimal pairs approach is for children who have “one particularly pervasive process or only a few age-inappropriate phonological processes seem to be better candidates” (p. 43).
Rationale behind Minimal Pair Therapy
Bankson, N. W., & Bernthal, J. E., Flipsen, P., Jr.. (2013). Linguistically Based Treatment
Approaches. In Articulation and Phonological Disorders: Speech Sound Disorders in Children (7th ed., pp. 307-313). Upper Saddle River, NJ: Pearson Education.
Bauman-Waengler, J. (2012). Articulation and Phonological Impairment: A Clinical Focus
(4th ed., pp. 7). Pearson Education.
Blache, S.E, Humphreys, J.M, Parsons, C.L. (1981) A Minimal-Word- Pair Model for Teaching the
Linguistic Significance of Distinctive Feature Properties. Journal of Speech and Hearing Disorder, 46, 291-296
Williams, A. L., McLeod, S., McCauley, R. J. (2010). Interventions for speech sound
disorders in children. Baltimore, MD: Paul H. Brookes Publishing Co., Inc.
Minimal pairs can differ by..
Are two words that differ by a single phoneme.
What is Minimal Pair Therapy?
- It is a linguistically-based speech intervention that focuses on the awareness of sound omissions and substitutions in order to help the client recognize that different sounds can change the meaning of words (Bankson, Bernthal, Flipsen,1981).
- It uses a set of words that differ by one phoneme (i.e. bat-pat, sun-ton, or move-mood) (Bankson, Bernthal, Flipsen,1981)
pat vs. fat
pat vs bat
sun vs. fun
By focusing on word-pairs that typically differ by one phoneme contrast will teach the child that change in one sound can signal a different meaning.
(Bankson, Bernthal, Flipsen,1981
Few studies comparing the efficacy of using minimal pairs vs. maximal pair therapy approach
Previous research showed greater progress with maximal contrast therapy. (i.e. fan; man vs. fan; man)
19 children were randomly assigned to two treatment groups; traditional minimal pair therapy and intervention targeting contrasts differing across a range of distinctive features
Both groups showed considerable progress after receiving 6 hours of therapy. No significant difference between groups.
Baker reported in a literature review in 2010 that minimal pair research has widely varied.
40 research studies to date
different treatments used in every study- difficult to compare studies
Many lower levels of evidence (level IIb and III)
However, the majority of research exhibit positive results for minimal pair therapy
Dodd, B., Crosbie, S., Mcintosh, B., Holm, A., Harvey, C., Liddy, M., . . . Rigby, H. (2008). The impact of selecting different contrasts in phonological therapy. International Journal of Speech-Language Pathology, 10(5), 334-345. doi:10.1080/14417040701732590
Baker, E., “Minimal pair intervention.” in A. L. Williams, S. McLeod, and R.J. McCauley (Eds.), Interventions for Speech Sound Disorders in Children (pp.41-72), Baltimore, MD: Brookes, 2010b.
Study conducted by William A.L. showed minimal pair treatment is effective with other treatment approaches as well.
Multiple oppositions, minimal pairs, and NSI treatment models
At least two treatments were chosen for each child
When minimal pairs treatment was paired with MO or NSI, in children with moderate to severe phonological impairments, significant changes in treatment occurred.
Williams, A.L., (2000). Multiple Oppositions: Case Studies of Variables in Phonological Intervention. American Journal of Speech-Language Pathology (9, 289-299).
Blanche, S.E., Humphreys, J.M., Parsons, C.J. (1981). A Minimal-Word-Pair Model for Teaching the Linguistic Significance of Distinctive Feature Properties. Journal of Speech and Hearing Disorders, 46, 291-295.
Select a sound contrast to be trained based on the speech sound errors exhibited by the client.
Begin minimal contrast training at the perceptual level.
Informally evaluate the client’s motor production of the target sounds and words.
Have the client imitate each target word from the clinician model.
Engage the client in minimal contrast training at the production level.
Incorporate a carrier phrase in order to have the client incorporate each of the contrast words at the phrase and sentence level.
A study done by Blanch, Humphreys, & Parsons (1981), found that seven children with moderate to severe phonological errors improved through the use of minimal pair therapy.
7 subjects were taught to correctly discriminate and produce sounds in words by utilizing minimal pairs.
The substitution pattern errors showed a consistent reduction after minimal word pair training.
30 % of untreated substituted errors should an improved after minimal word pair therapy.
The most significant aspect of the study is the reduction of substitution error for all 7 subjects
Blache, S.E, Humphreys, J.M, Parsons, C.L. (1981) A Minimal-Word- Pair Model for Teaching the Linguistic Significance of Distinctive Feature Properties. Journal of Speech and Hearing Disorder, 46, 291-296