Multiple Oppositions Approach: Treating One Sound That Replaces Many
Multiple oppositions therapy targets phoneme collapse — one sound replacing many, like D for D, F, CH, S, T, and ST. Instead of one pair, the child works on a set: “door, four, chore, sore, tore, store.” In a trial of 54 preschoolers, multiple oppositions three times a week beat once-weekly sessions and a control.
Phoneme collapse: one sound doing too many jobs
Some children use one default sound in place of many. ASHA describes how a child might substitute a favorite sound so widely that several words become homonyms — “shore,” “sore,” “chore,” and “tore” might all be said as “door.” Listeners then have to guess from context, which is why intelligibility suffers.1
Multiple oppositions, a variation of the minimal oppositions approach, tackles the whole collapse at once: the child’s error sound is contrasted with a set of the target sounds it replaces.1
Example word sets
| Child uses | For these targets | Word set |
|---|---|---|
| /d/ | /d, f, tʃ, s, t, st/ | door · four · chore · sore · tore · store |
| /t/ | /t, k, s, ʃ/ | two · coo · sue · shoe |
| /h/ | /h, s, f, tʃ, ð/ | hat · sat · fat · chat · that |
Word sets for multiple oppositions. The first is ASHA’s example.1
Each word in a set is a real word, so saying the default sound for every one produces the same word — a natural, meaningful reason to change. ASHA’s systemic target-selection example describes a child who uses /h/ for multiple phonemes.1
Free target-word generator
Build a word list by sound and position in seconds — free, no account.
The evidence, and why intensity matters
The best-known trial randomly assigned 54 preschoolers with speech sound disorders to multiple oppositions three times a week for 8 weeks, the same approach once a week for 24 weeks, or a storybook control. The three-times-a-week group had significantly better outcomes than both other groups at 8 weeks and than the once-weekly group after 24 sessions; the once-weekly group did not differ significantly from the control.3
Data from three intervention studies, mainly using multiple oppositions, pointed the same way: greater intensity yields greater treatment outcomes, intensity shifts as treatment progresses, and it differs by severity.4
Multiple oppositions vs. other contrast approaches
A 2022 tutorial compares the three main contrast approaches: conventional minimal pairs for children with a small number of errors; maximal oppositions for multiple errors across several sound classes; and multiple oppositions for global phoneme collapses that affect intelligibility. It also covers writing goals and choosing intensity for each.2
For parents
If your child’s SLP is using multiple oppositions, ask for the word sets and practice them at home between sessions — frequency was the deciding factor in the trial.
Frequently asked questions
What is the multiple oppositions approach?＋
A variation of minimal pairs therapy that targets phoneme collapse. Instead of contrasting one error with one target, the child’s error sound is contrasted with several target sounds at once. ASHA’s example: if a child uses /d/ for /d, f, tʃ, s, t, st/, the set could be “door,” “four,” “chore,” “sore,” “tore,” and “store.”
What is phoneme collapse?＋
When one sound substitutes for many different sounds, so many words sound the same. ASHA notes this can produce several homonyms — “shore,” “sore,” “chore,” and “tore” might all come out as “door” — which hurts intelligibility.
Who is multiple oppositions best for?＋
A 2022 tutorial says the multiple oppositions approach specifically targets global phoneme collapses that affect intelligibility, while conventional minimal pairs suit children with few errors.
How often should multiple oppositions therapy happen?＋
Frequency mattered in the best-known trial. Preschoolers who received multiple oppositions three times a week for 8 weeks did significantly better than those receiving the same 24 sessions once a week, and the once-weekly group did not differ significantly from a storybook control.
Put this into practice today
Try the free target-word generator, or start daily AI speech practice — every child takes one SpeechStep at a time.
References
4 sources from authoritative bodies. Last reviewed October 2026.
- 1.ASHASpeech Sound Disorders: Articulation and Phonology — Practice Portal page.
- 2.Peer-reviewedStorkel — Minimal, Maximal, or Multiple: Which Contrastive Intervention Approach to Use With Children With Speech Sound Disorders? — Clinical tutorial (LSHSS), 2022.
- 3.Peer-reviewedAllen — Intervention Efficacy and Intensity for Children With Speech Sound Disorder — Randomized controlled trial (JSLHR), 2013.
- 4.Peer-reviewedWilliams — Intensity in Phonological Intervention: Is There a Prescribed Amount? — Research report (International Journal of Speech-Language Pathology), 2012.