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Insights Case study Early intervention

Case Study: Speech Delays vs. Late Talkers—When Should Parents Be Concerned?

Katherine

July 20, 2025

5 min read

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Case Study: Speech Delays vs. Late Talkers—When Should Parents Be Concerned?
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Every child develops at their own pace, but when a toddler isn’t talking as much as their peers, parents often feel a mix of concern and confusion. Is this just a late bloomer, or is there an underlying speech delay?

In this case study, we follow Ethan, a 2.5-year-old who says very few words compared to other toddlers his age. His parents, initially reassured that “boys talk later” and “he’ll catch up,” begin noticing growing frustration as Ethan struggles to communicate. Their journey through early intervention, speech therapy, and parental involvement highlightsthe importance of recognizing signs of speech delays and taking proactive steps to support language development.

Meet Ethan: A Toddler with Limited Speech

Ethan, a 30-month-old toddler, is an energetic and curious child. He loves playing with cars, climbing on furniture, and watching his favorite cartoons. However, his parents begin to notice something concerning:

  • At 18 months, Ethan only had about 3-5 words (e.g., “mama,” “dada,” “ball”), while other toddlers they knew were saying short phrases.
  • By 24 months, his word count hadn’t increased much—he mostly pointed or made sounds to indicate what he wanted.
  • At 2.5 years (30 months), Ethan still wasn’t putting two words together and often became frustrated when trying to communicate.

His pediatrician had previously said, “Let’s give it time—he’s probably just a late talker.” But as Ethan’s frustration increased, his parents wondered: Was this just a speech delay, or something more?

 

Understanding Late Talkers vs. Speech Delays

Ethan’s case is common—many parents hear that their child is just a "late talker", but in some cases, a speech delay requires early intervention.

What Is a Late Talker?

A late talker is a toddler (18-30 months) who has good understanding of language and normal development in other areas, but a limited spoken vocabulary for their age.

Signs of a Late Talker:

  • Understands what you’re saying (e.g., follows simple commands like “Go get your shoes”)
  • Uses gestures to communicate (pointing, waving, shaking head)
  • Shows interest in social interactions and play
  • Seems to be learning new words, just at a slower rate

Outcome:
Many late talkers catch up on their own, but some may need speech therapy for extra support.

What Is a Speech Delay?

A speech delay occurs when a toddler is behind expected speech milestones and has difficulty with language comprehension or communication.

Signs of a Speech Delay:

  • Doesn’t respond to their name or follow simple instructions
  • Doesn’t use gestures (pointing, waving, clapping)
  • Seems frustrated or resorts to tantrums when trying to communicate
  • Shows no progress in acquiring new words over several months

Outcome:
A true speech delay may indicate an underlying issue, such as a language disorder, hearing problem, or neurodevelopmental delay. Early intervention is key.

Ethan’s parents realized that while he was social and engaged, his frustration, limited vocabulary, and slow progress suggested more than just late talking.

 

The Next Step: Seeking an Early Intervention Evaluation

By 32 months, Ethan’s parents decided to trust their instincts. They reached out to:

  • A Speech-Language Pathologist (SLP): To assess Ethan’s speech and language skills.
  • A Behavioral Therapist (ABA Therapy): To assess Ethan’s development and build out curated programming to address delays
  • An Early Intervention Program: A free state-funded service for children under age 3 with developmental delays.

Ethan’s Speech Evaluation Findings

After testing, the SLP determined that:

  • Ethan understood most words and followed directions well.
  • However, he had limited expressive language (only about 15 words at 32 months, compared to the expected 200+).
  • He often used gestures instead of words and avoided trying new words.

Diagnosis: Expressive Language Delay which means he had difficulty with speaking but normal comprehension.

Recommendation: Speech therapy 2x per week to build his vocabulary and encourage communication.

 

Therapy: What Helped Ethan Start Talking

Wanting to limit the number of therapies, Ethan's parents ultimately decided to engage a Behavioral Therapist. The ability to focus on a broader range of skills (including speech) to address all developmental delays was critical. Speech was a core part of therapy and the focus of Ethan's initial programming.

Building Imitation Skills

  • The therapist used play-based techniques (e.g., cars, bubbles) to encourage Ethan to imitate sounds and words.
  • Instead of saying, "Say ‘car’", she exaggerated the fun sounds of words: “Vroooom! Car!”
  • His parents practiced this at home by narrating daily activities and encouraging him to mimic words.

Expanding His Vocabulary

  • The therapist used the "1-Up Rule"—if Ethan said “ball,” she modeled a slightly longer phrase: “Big ball!”
  • He was encouraged to use words before receiving something (e.g., saying “up” before being picked up).

Encouraging Gestures and AAC Support

  • Because Ethan struggled to express himself, they introduced basic sign language for common requests like “more” and “help.”
  • Picture cards (AAC boards) were used to reduce frustration and reinforce spoken words.

 

Tracking Progress: When Did Ethan Catch Up?

After six months of therapy, Ethan made significant progress:

  • Increased from 15 words to over 100 words.
  • Started combining two words (e.g., “want cookie,” “go park”).
  • Reduced frustration and used words instead of gestures.

By the time Ethan turned 3.5 years old, he had caught up to his peers and no longer needed speech therapy. His parents were relieved—they had trusted their instincts and sought help early.

 

Key Takeaways

 If You’re Concerned, Don’t “Wait and See”

  • Many parents are told “He’ll grow out of it”, but early intervention can prevent bigger struggles later.
  • A evaluation can clarify whether your child is a late talker or has a delay.

 Encourage Speech Every Day at Home

  • Narrate everything: “We’re pouring juice! Juice, juice!”
  • Give choices: “Do you want apple or banana?” (forcing them to use words).
  • Use play-based learning—toddlers learn best through fun interactions.

Don’t Fear Speech Therapy

  • Many toddlers make rapid progress with professional support.
  • Even if your child doesn’t need therapy long-term, early sessions can make a huge difference.

Ethan’s story is proof that early speech delays don’t have to define a child’s future. With the right support, consistent practice, and early intervention, toddlers can build strong communication skills and thrive.

If you suspect your child has a speech delay, trust your gut. Seeking help sooner rather than later can provide the best foundation for their language development.

When to Seek a Speech Evaluation:

By 18 months: Less than 10 words
By 24 months: Less than 50 words, not combining words
By 30 months: Little progress in learning new words, frequent frustration

Remember: Early intervention isn’t about labeling—it’s about giving kids the tools they need to communicate and succeed.

 

Resources for Parents

*Note: The CDC updated these development milestones in 2022 to delay key milestones by about 30%. We recommend setting your targets between 6 - 12 months ahead of this checklist. We are working on an updated publication based on the prior checklist and our experience working with hundreds of children. This will be provided publicly once complete.

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