Selective Mutism Speech Therapy
Every morning, Lily chatters away at the breakfast table, telling her parents elaborate stories about her stuffed animals. But the moment she walks through the school gates, something changes. She freezes. Her voice disappears. Teachers wonder if she can speak at all.
This is the reality for thousands of children with selective mutism—a condition where a child who speaks perfectly well at home becomes unable to speak in specific social situations like school, clubs, or around extended family members.
If you’re reading this because your child stays silent in certain settings, you’re in the right place. This guide will walk you through exactly how speech therapy helps children with selective mutism, what assessment looks like when a child won’t talk to the examiner, and practical steps you can take today to support your child’s journey toward communicating successfully across all areas of their life.
Key Takeaways
- Selective mutism is a complex anxiety disorder where a child who can speak normally at home is unable to speak in specific social settings, often beginning in early childhood and requiring early identification for best outcomes.
- Speech therapy plays a vital role in treating selective mutism by reducing communication pressure, building confidence, and gradually shaping verbal communication in real-life settings alongside a multidisciplinary team.
- Successful treatment involves collaboration among speech-language pathologists, psychologists, educators, and family members, with therapy tailored to the child’s pace and needs to support gradual progress toward comfortable verbal participation.
What is Selective Mutism?

Selective mutism is a complex anxiety disorder in which a child who is physically and linguistically capable of speech consistently fails to speak in specific social situations where speaking is expected, despite speaking normally in other settings—typically at home with immediate family.
The American Psychiatric Association classifies selective mutism under anxiety disorders in the DSM-5, not as a speech or language disorder. This distinction matters because it shapes how professionals approach treatment.
To meet diagnostic criteria for selective mutism, a child must show:
- Inability to speak in specific social situations where speaking is expected (such as school), despite speaking in other situations
- The disturbance interferes with educational achievement or social communication
- Duration of at least one month, not limited to the first month of school
- The failure to speak is not due to lack of knowledge of the spoken language required in that setting
- The behavior is not better explained by a communication disorder, autism spectrum disorder, or other psychiatric disorders
Selective mutism typically begins in early childhood, with onset usually between ages 2 and 4. However, the condition is often first noticed when children begin nursery or primary school—the first time many children are regularly expected to speak to unfamiliar adults and peers.
Speech therapy is one essential part of a wider treatment plan, typically led by a team of professionals experienced in anxiety and child development. No single professional treats selective mutism in isolation.
How Speech Therapy Helps in Selective Mutism
Speech-language pathologists (sometimes called speech and language therapists in the UK) are key members of the multidisciplinary team treating selective mutism. They work alongside psychologists, teachers, and families to address the core functional impairment: the child’s ability to communicate across different settings.
The primary goal of speech therapy for selective mutism isn’t to “make the child talk.” Instead, therapy aims to reduce communication pressure, build confidence in speaking situations, and systematically shape communication from nonverbal to verbal in feared settings—whether that’s the classroom, playground, or clinic.
A speech language pathologist addresses both the anxiety around speaking and any underlying speech, language, or pragmatic communication difficulties. Many children with selective mutism have subtle speech and language development differences that increase self-consciousness about speaking. Therapy can address these in parallel, but carefully—without amplifying performance pressure.
For most children with selective mutism, therapy happens in real-life environments. An SLP might work with a child in a quiet corner of their classroom after school hours, gradually introducing the teacher into sessions. They might practice ordering food at a café or answering questions in the school office. This in-situ work is essential because gains made in a clinic room don’t automatically transfer to school or community settings.
Above all, therapy is child-led and gradual. Forcing speech—saying “just talk” or pushing a child to speak publicly before they’re ready—typically increases anxiety and resistance. Best-practice speech therapy walks a careful line between gentle, structured challenge and emotional safety, allowing each child to progress at his or her own pace.
Understanding Speech, Language, and Social Communication in Selective Mutism
Before diving into therapy approaches, it helps to understand the different components professionals assess:
|
Term |
What It Means |
|---|---|
|
Speech |
The physical production of sounds—articulation, voice quality, fluency, and how sounds come together |
|
Language |
Vocabulary, grammar, understanding spoken language, and narrative language (telling stories, explaining events) |
|
Pragmatics |
The social use of language—starting conversations, taking turns, adjusting tone for different listeners, using appropriate facial expressions and body language |
Many children with selective mutism have intact basic speech and language at home. Parents often report their child speaks in full sentences, tells elaborate stories, and has age-appropriate vocabulary. The problem isn’t capacity—it’s context.
However, when carefully assessed, many of these children show hidden pragmatic or language weaknesses that only emerge in group settings or with unfamiliar adults. These challenges might include:
- Difficulty starting conversations with peers
- Trouble taking conversational turns in group activities
- Avoiding eye contact or showing a frozen facial expression when asked to speak
- Using an altered voice (very quiet, high-pitched, or monotone) even when they do speak
- Struggling with appropriate volume and tone in class discussions
The fear of speaking can mask or worsen subtle articulation or language problems. A child who rarely speaks at school has fewer opportunities to practice verbal communication with teachers and classmates. Over time, this avoidance can compound language deficits that might otherwise have resolved with practice.
Consider this real-life example: A 6-year-old tells long, imaginative stories at home about dragons and space adventures. But at school, she only nods, points, or shakes her head. Her teacher describes “sudden stillness” when she’s called on. Her facial expressions seem blank, and she avoids eye contact. At home, there’s nothing concerning. At school, it’s as if she’s a different child.
This disconnect—comfortable speaking at home, silent everywhere else—is the hallmark of selective mutism.
Recent Research on Speech and Language Difficulties in Selective Mutism
Modern research has uncovered something important: a high proportion of children with selective mutism also have measurable speech and language difficulties.
While selective mutism is classified as an anxiety disorder (not a language disorder), studies consistently find that these conditions frequently co-occur. When researchers carefully assess children with selective mutism using standardized tests and parent reports, they find:
|
Finding |
Approximate Percentage |
|---|---|
|
Language disorder only |
15–20% |
|
Articulation/speech sound disorder only |
10–15% |
|
Combined speech and language difficulties |
20–25% |
|
No measurable speech/language impairment |
40–50% |
This means roughly half or more of children with selective mutism show some kind of language or speech weakness when carefully assessed—a rate much higher than in the general population.
Why does this matter for treatment?
If a child has both selective mutism and an underlying articulation difficulty, they may feel extra self-conscious about how their speech sounds. This compounds the anxiety. Similarly, a child with subtle language deficits might struggle to find words quickly in group discussions, increasing fear of difficulty speaking in front of others.
These children need both anxiety-focused treatment and specific language or articulation therapy. A speech language pathologist can address both, but only if the assessment identifies what’s actually going on beneath the silence.
This research also challenges the old assumption that children with selective mutism have “normal” speech and language. Many do—but many don’t, and identifying those who need additional support changes the treatment plan significantly.
Assessment: How Speech-Language Pathologists Evaluate Selective Mutism
Assessing a child who won’t speak to you requires creativity and flexibility. Traditional speech and language assessments rely on the child responding verbally to questions and tasks. When the child is silent in the clinic, the SLP must adapt.
Here’s how assessment typically works:
Gathering Information from Others
The SLP collects detailed information from parents, teachers, and the child (when possible) using:
- Parent interviews: Detailed questions about where the child speaks, with whom, and at what volume
- Teacher questionnaires: Information about the child’s communication in class, at lunch, and on the playground
- School observations: Watching the child in natural settings to see their behavior firsthand
- Anxiety rating scales: Standardized forms measuring anxiety levels in different situations
Areas Assessed
A thorough assessment covers:
- Articulation (speech sound production)
- Voice quality and fluency
- Receptive language (understanding what others say)
- Expressive language (vocabulary, grammar, sentence structure)
- Narrative language skills (telling stories, sequencing events)
- Pragmatic language (social use of communication)
Adapting Standardized Tests
When a child won’t speak during formal testing, clinicians might:
- Accept pointing or nonverbal responses
- Have parents administer test items while the SLP observes
- Use multiple-choice picture formats
- Break testing across several short sessions as the child becomes more comfortable
Using Home Evidence
Parents become essential partners in assessment. SLPs often ask families to:
- Record short videos of the child speaking at home (playing, reading, chatting)
- Collect audio recordings of conversations with familiar person like parents or siblings
- Document where the child does and doesn’t speak (at home, with grandparents during family visits, at the park, in shops)
These recordings capture the child’s “true” abilities when relaxed, providing invaluable information the clinician can’t observe directly.
Screening for Other Factors
Assessment also rules out other explanations:
- Hearing difficulties: Even mild hearing loss affects speech and language development
- Developmental language disorder: A primary language impairment separate from anxiety
- Autism traits: Social communication differences that might present similarly
- Bilingual language-learning factors: Bilingual children may be misdiagnosed with selective mutism when they’re actually in a normal silent period of second-language acquisition
Getting the assessment right matters. A child with selective mutism needs anxiety-focused intervention. A child with a primary language disorder needs language therapy. A child with both needs integrated treatment addressing each concern.
Core Speech Therapy Approaches for Selective Mutism
Evidence-informed speech therapy for selective mutism is behavioral, gradual, and highly structured. The goal is systematic reduction of speaking-related anxiety in real-world contexts, using techniques borrowed from anxiety treatment and adapted for communication work.
Behavioral Techniques in Speech Therapy
|
Technique |
How It Works |
|---|---|
|
Stimulus fading |
A feared person (teacher, peer) is gradually introduced into a comfortable speaking situation. The child starts talking with a parent; the teacher appears briefly, then stays longer, eventually joins the activity. |
|
Shaping |
Reinforcing successive approximations toward speech. First, eye contact is praised. Then nodding. Then a whisper. Then a word. Each small step is celebrated. |
|
Positive reinforcement |
Verbal praise, stickers, or small rewards for any brave communication attempts—not just audible speech. |
|
Graded exposure |
Systematically introducing the child to increasingly challenging speaking situations, starting with the least anxiety-provoking. |
Starting with Non Verbal Communication
Therapy often begins without any expectation of speech. A child who is completely silent at school might first be reinforced for:
- Making eye contact with the therapist
- Pointing to choose activities
- Using alternative communication (picture cards, written notes, gestures)
- Blowing, humming, or making sounds during games
These non verbal communication strategies reduce pressure and build positive associations with the therapy relationship. The child learns that communication is valued, not just speech.
Building Toward Speech
As comfort grows, the SLP shapes communication toward verbal responses:
- Accepting any vocalization (laughing, animal sounds during play)
- Whispering single words to a parent with the SLP nearby
- Whispering directly to the SLP
- Speaking at normal volume in a quiet room
- Speaking with a new person present
- Speaking in the classroom during structured activities
This progression might take weeks or months. Rushing undermines progress.
Coordinating with CBT Principles
SLPs often collaborate with psychologists using cognitive-behavioral therapy (CBT) principles. Together, they create graded exposure hierarchies tailored to specific speaking situations the child fears:
- Answering morning register
- Asking for help in class
- Speaking in small groups
- Reading aloud to the teacher
- Presenting to the whole class
Each situation is rated for anxiety level, and the child practices easier tasks until anxiety drops before moving to harder ones.
Tracking Progress
Therapy goals are concrete and measurable:
“Child will answer yes/no questions aloud to the teacher in a quiet room, 3 out of 5 opportunities, for 3 consecutive sessions.”
This specificity allows everyone—parents, teachers, therapists—to know exactly what success looks like and when the child is ready for the next challenge.

The Ritual Sound Approach® and Other Sound-Shaping Techniques
Some children with selective mutism appear physically “stuck” when asked to speak. Their throat seems to close up. They describe being unable to make any sound, even when they want to.
Sound-based approaches address this by starting with voiceless sounds—sounds that don’t require the voice:
- Blowing (blowing out candles, blowing bubbles)
- Hissing sounds (like a snake)
- Popping sounds with lips
- Clicking tongue
These neutral sounds feel less risky than “real speech” because they’re not “words.” There’s less to get wrong.
From these sounds, the therapist gradually shapes communication:
- Voiceless sounds during play
- Adding voice to sounds (hissing becomes “sss” becomes “sah”)
- Syllables emerge
- Single words in game contexts
- Short phrases
The Ritual Sound Approach® systematically moves through these stages within fun activities—games, crafts, story time. The child barely notices they’re progressing toward speech because each step feels like play.
Critically, these techniques work best when practiced first with a trusted person (often a parent) and then extended to less familiar adults and finally peers. The parent might practice sound games at home, then the same games happen with the SLP, then with the SLP and teacher together.
Augmented Self-Modeling and Video-Based Strategies
Augmented self-modeling is a powerful technique that uses video technology to help children see themselves as successful speakers.
Here’s how it works:
- Record at home: Parents capture short clips of the child speaking comfortably—reading a book, playing, answering questions
- Edit strategically: The video is edited to make it appear as though the child is speaking successfully in a school-like context (using classroom backgrounds or splicing footage)
- Repeated viewing: The child watches these videos regularly, seeing themselves as someone who can speak at school
- Reduce anxiety: Over time, the idea of speaking at school becomes less frightening because the child has “seen themselves do it”
This self modeling technique leverages the power of visualization. Athletes have used similar methods for decades—watching videos of successful performance builds confidence and reduces anxiety about the real thing.
SLPs may collaborate with parents to film natural home conversations, then show the edited videos during therapy sessions and sometimes in school meetings (with parent permission). Seeing the child speak can also shift teacher expectations, helping staff understand that the child is capable.
However, augmented self modeling works best alongside live practice opportunities. After watching a video of themselves answering a question, the child practices the same task in a low-pressure setting. The video builds belief; the live practice builds skill.
Setting Speech and Language Goals in Treatment Plans
An effective treatment plan for selective mutism includes goals covering both anxiety reduction and functional communication skills relevant to school, home, and community.
Examples of Speech Goals
- Increase volume from whisper to soft voice in one-on-one sessions
- Expand from single-word responses to short sentences
- Improve articulation clarity for specific sounds (if relevant)
- Use an audible voice when answering questions in small groups
Examples of Language and Pragmatic Goals
- Use greetings with teachers and classmates (verbal or nonverbal at first)
- Ask for help in class using words or pictures
- Take conversational turns with a peer during structured activities
- Tell a short story about their weekend to a familiar adult at school
- Initiate conversation with a peer during free play
Breaking Goals into Steps
Each goal is broken into small, achievable steps linked to real situations:
|
Long-Term Goal |
Steps to Get There |
|---|---|
|
Order food independently at a café |
1. Point to menu item with parent ordering 2. Whisper choice to parent 3. Say choice aloud with parent present 4. Say choice directly to server |
|
Answer teacher in morning circle |
1. Nod in response to yes/no question 2. Whisper “here” with parent present 3. Whisper to teacher alone 4. Use soft voice in empty classroom 5. Use soft voice with class present |
Progress is monitored over weeks and months. Parents and teachers provide regular feedback, and goals are adjusted as more confident children emerge from therapy—children who may be ready for challenges that seemed impossible months earlier.
Collaboration with Schools, Families, and Mental Health Professionals
Selective mutism affects every area of a child’s life, which means treatment cannot be effective when one professional works in isolation. The most successful outcomes happen when everyone works together with a unified approach.
Working with Schools
SLPs collaborate closely with classroom teachers and school staff to:
- Reduce pressure: No sudden questioning in front of the class; allowing nonverbal answers initially
- Create predictable opportunities: Structured, low-stakes moments where the child can practice speaking (answering a one-word question privately, reading with a teaching assistant)
- Adjust expectations: Understanding that initially, verbal participation will be limited—and that’s okay
- Provide consistent responses: Training all staff who interact with the child to use the same strategies
The child’s school becomes a treatment environment, not just a place where symptoms show up.
Working with Mental Health Professionals
A mental health professional—typically a child psychologist or psychiatrist—leads treatment of the underlying anxiety disorder. They provide:
- Cognitive-behavioral therapy (CBT) addressing anxious thoughts and avoidance
- Family work helping parents respond helpfully to the child’s anxiety
- In some cases, medication (selective serotonin reuptake inhibitors are most commonly used when therapy alone isn’t sufficient)
The SLP and psychologist communicate regularly, ensuring that anxiety-reduction work and communication-focused work complement each other.
Training Parents and Teachers
Consistent strategies across settings are essential. Adults are coached to:
- Avoid rescue behaviors: Not speaking for the child or removing them from slightly challenging situations
- Stay neutral if the child is silent: No disappointment, no excessive reassurance, no pressure
- Celebrate effort, not just outcome: Praising brave attempts (“I noticed you looked at Mrs. Smith when she said hello”) rather than only praising speech
- Skip verbal reassurance that backfires: Avoid saying “It’s okay, you don’t have to talk” (which reinforces avoidance) or “Why won’t you just say something?” (which increases anxiety)
Maintaining Communication
Regular team meetings—whether in person or via email—help maintain a unified plan. When the child experiences the same expectations and responses at home and school, progress accelerates. Conflicting messages (“Mom lets me stay silent, but the teacher makes me talk”) undermine treatment.

Practical Tips for Parents Seeking Speech Therapy for Selective Mutism
If you suspect your child has selective mutism, early identification leads to better outcomes. Here’s when to seek help and what to do next.
When to Seek Help
Consider reaching out if:
- Your child remains silent in school or public settings for more than a month after starting (not just the adjustment period)
- They appear distressed, show sudden stillness, or display a frozen facial expression when expected to speak
- Teachers report significant differences from what you see at home
- Your child avoids social situations, shows separation anxiety, or has temper tantrums before events requiring speech
- There’s a family history of anxiety, social anxiety disorder, or selective mutism
First Steps
- Talk to your GP or pediatrician: Describe what you’re seeing at home versus school
- Request a referral: Ask specifically for a speech language pathologist experienced with anxiety-related communication issues
- Inform school staff: Share your concerns and ask about their observations
- Contact the Child Mind Institute or Selective Mutism Association for resources and guidance on finding specialists
Gather Evidence
Professionals will ask about your child’s speaking patterns. Prepare by:
- Collecting short videos of your child speaking at home (even just 30 seconds of natural conversation)
- Making notes about where your child does speak (with familiar adults at home, with siblings, during family visits) and where they don’t (school, clubs, with extended family members, around a new person)
- Tracking any patterns (worse on Monday mornings? Better in small groups?)
Supporting Your Child at Home
While waiting for assessment or during treatment:
|
Do |
Don’t |
|---|---|
|
Keep communication pressure low |
Say “just talk” or “use your words” |
|
Provide relaxed play-based opportunities to use their voice |
Compare them to peers who speak easily |
|
Celebrate small brave moments |
Show disappointment when they’re silent |
|
Model calm, confident communication |
Speak for them unnecessarily |
|
Practice fun activities involving sounds and games |
Force them to speak to visitors or on the phone |
Some children benefit from relaxation techniques practiced at home—deep breathing, muscle relaxation—that they can later use in anxiety-provoking situations.
Understand the Timeline
Progress is typically gradual. Most children with selective mutism improve over months to years with appropriate support. Those diagnosed in early childhood (preschool, early primary) and whose families and schools consistently follow treatment plans have the best outcomes.
Severely affected children tend to need longer, more intensive intervention. But the prognosis is generally good: with proper treatment, most children expand their speaking significantly, and many eventually speak in all settings.
Additional Resources and Where to Find Support
Finding the right help can feel overwhelming. Here are resources to guide your search.
Organizations and Charities
- Selective Mutism Association (SMA): Information, resources, and support groups for families
- Selective Mutism Information & Research Association (SMIRA) (UK): Charity providing guidance for parents, teachers, and clinicians
- American Speech-Language-Hearing Association (ASHA): Find a speech language pathologist through their professional directory
- Royal College of Speech and Language Therapists (RCSLT) (UK): Locate a registered speech and language therapist
Types of Resources Available
- Parent manuals: Practical guides for supporting a child with selective mutism at home and school
- Clinician handbooks: Detailed treatment protocols (helpful for SLPs who want to specialize)
- Online support groups: Facebook groups and forums where parents share experiences
- Educational videos: YouTube channels and webinars explaining selective mutism and speech therapy approaches
Finding a Specialist
Not every SLP has experience with selective mutism. When searching:
- Ask specifically: “Have you treated children with selective mutism before?”
- Check professional directories for clinicians listing anxiety-related communication issues
- Look for SLPs who work in private practice or hospital clinics specializing in child anxiety
- Consider telehealth options—some specialized centers offer remote consultation when local expertise isn’t available
Awareness and Advocacy
October is Selective Mutism Awareness Month—an opportunity to educate your child’s teachers and school community. Many schools welcome presentations or resources during this time.
Advocacy matters. When teachers understand that selective mutism is an anxiety disorder—not defiance, not rudeness, not the child being “socially awkward rude”—they respond more helpfully.

Selective mutism can feel isolating for children and frightening for parents. Seeing your child freeze when other confident children chat easily is painful. But here’s what the research consistently shows: with early intervention, coordinated speech therapy, and a team approach involving school, family, and mental health professionals, most children with selective mutism greatly expand their ability to speak in everyday life.
Your child has a voice. They use it at home. The goal of treatment isn’t to create something new—it’s to help them access what they already have in the places where anxiety currently blocks them.
If you’re concerned about your child, don’t wait. Reach out to your pediatrician, contact a speech language pathologist, and start gathering those home videos. Early action leads to the best outcomes.
Your child’s journey toward communicating successfully in all areas of their life starts with one step—and you’ve already taken it by learning what you’ve learned today.
Frequently Asked Questions (FAQ)
What is selective mutism?
Selective mutism is a complex anxiety disorder where a child who can speak normally at home is unable to speak in certain social situations, such as at school or around unfamiliar people. It typically begins in early childhood and is related to social anxiety rather than a speech or language disorder.
How does speech therapy help children with selective mutism?
Speech therapy helps by reducing communication pressure, building confidence, and gradually shaping verbal communication from nonverbal to verbal in feared settings. Speech-language pathologists work alongside psychologists, educators, and family members to support the child’s progress at their own pace.
Can children with selective mutism also have speech or language difficulties?
Yes. Research shows that many children with selective mutism have underlying speech or language deficits, such as articulation difficulties or pragmatic language challenges. Speech therapy addresses these alongside anxiety to support overall communication skills.
What techniques are used in speech therapy for selective mutism?
Common techniques include stimulus fading, shaping, graded exposure, positive reinforcement, and the Ritual Sound Approach®. Therapy often begins with nonverbal communication and gradually builds toward verbal participation in comfortable settings.
How long does treatment for selective mutism usually take?
Treatment duration varies depending on the severity of the child’s anxiety and individual needs. Progress is typically gradual, often taking months to years. Early identification and consistent support across home, school, and therapy settings improve outcomes.
Can parents and teachers help with selective mutism treatment?
Absolutely. Parents and teachers play crucial roles by creating low-pressure environments, using positive reinforcement, avoiding pressure to speak, and collaborating with therapists to maintain consistent strategies across settings.
When should I seek speech therapy for my child?
If your child consistently fails to speak in social settings like school for more than a month, shows signs of anxiety or frozen facial expressions when expected to speak, or if you have concerns about their communication, it’s important to seek evaluation by a speech language pathologist experienced in selective mutism.
Is selective mutism the same as being shy?
No. Selective mutism is more than shyness. It is a complex anxiety disorder that causes a child to be unable to speak in certain situations despite having the ability to speak normally in others. It requires specialized intervention for effective treatment.
Can selective mutism persist into adulthood?
If left untreated, selective mutism can persist and lead to social isolation and anxiety in adulthood. Early intervention with a multidisciplinary approach, including speech therapy, greatly improves the likelihood of successful communication in all settings.
Are there alternative communication methods used during therapy?
Yes. Alternative communication methods such as gestures, picture cards, or written notes may be used initially to reduce pressure and encourage communication while building confidence toward verbal speech.
Original content from the Upbility writing team. Reproducing this article, in whole or in part, without credit to the publisher is prohibited.
References
- American Psychiatric Association. (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.). Arlington, VA: American Psychiatric Publishing.
- Beidel, D. C., & Turner, S. M. (2007). Shy children, phobic adults: Nature and treatment of social anxiety disorders (2nd ed.). American Psychological Association.
- Bergman, R. L. (2013). Treatment for children with selective mutism: An integrative behavioral approach. Oxford University Press.
- Klein, E. R., Armstrong, S. L., & Shipon-Blum, E. (2013). Assessing spoken language competence in children with selective mutism: Using parents as test presenters. Communication Disorders Quarterly, 34(3), 184–195. https://doi.org/10.1177/1525740112455053
- Kearney, C. A. (2010). Helping children with selective mutism and their parents: A guide for school-based professionals. Oxford University Press.
- Selective Mutism Association. (n.d.). Resources and research. https://selectivemutism.org/resources/
- Shipon-Blum, E. (2010). Social Communication Anxiety Treatment® (S-CAT). Selective Mutism, Anxiety & Related Disorders Treatment Center.
- Royal College of Speech and Language Therapists. (n.d.). Selective mutism information. https://www.rcslt.org/speech-and-language-therapy/clinical-information/selective-mutism
- American Speech-Language-Hearing Association. (n.d.). Selective mutism. https://www.asha.org/practice-portal/clinical-topics/selective-mutism/