Maximizing Treatment Effectiveness: Six Critical Elements of a Successful Intensive Preschool Language Program for Children With Language Disorders

Clinical Focus: Maximizing Treatment Effectiveness

Authors and Affiliation

• Karole A. Howland, Meghan G. Graham, Michelle Mentis

  Department of Speech, Language & Hearing Sciences, Boston University, MA

Article Information

• Article History: Received August 14, 2024; Revision received February 3, 2025; Accepted May 14, 2025

• Editor-in-Chief: Kelly Farquharson

• Editor: Shari L. DeVeney

• DOI: https://doi.org/10.1044/2025_LSHSS-24-00097

• Correspondence: Karole A. Howland: khowland@bu.edu.

• Publisher Note: This article is part of the Forum: Changemakers Igniting Innovation.

• Disclosure: Authors declared that no competing financial or nonfinancial interests existed at the time of publication.

Abstract

• Purpose: This article meticulously examines six critical, interconnected elements essential for the successful implementation and optimization of an intensive summer Preschool Language Program (iPLP). The primary goal is to enhance intervention strategies for young children diagnosed with diverse language disorders, ultimately maximizing their language acquisition and generalization.

• Participants: The program caters to a diverse and heterogeneous group of pediatric participants, typically aged 3-5 years. This cohort includes children diagnosed with Developmental Language Disorder (DLD), Dual-Language Learners (DLLs) navigating two linguistic systems, and those presenting with co-occurring neurodevelopmental or communicative conditions such as Autism Spectrum Disorder (ASD), Speech Sound Disorder (SSD), and Attention-Deficit/Hyperactivity Disorder (ADHD), highlighting the program's inclusive and adaptive design.

• Focus: The core therapeutic emphasis is placed squarely on expanding and refining expressive language skills. This involves a dual focus on both the macrostructure of language (e.g., narrative coherence, discourse organization) and the microstructure (e.g., syntax complexity, morphology, vocabulary use), ensuring a holistic approach to language development.

• Methodology: The methodology employed involves a comprehensive, element-by-element discussion. Each critical element's theoretical underpinnings are explored, followed by an elucidation of its practical application within the iPLP. A central tenet is the continuous adaptation of intervention based on real-time, ongoing progress monitoring and the evolving insights accumulated throughout the program's intensive duration, ensuring dynamic and responsive intervention.

• Results: The outcomes are robustly presented through detailed, illustrative case studies. These cases vividly demonstrate the practical application of key tools like Language Sample Analysis (LSA) in guiding diagnosis and tracking progress, the strategic formulation of highly individualized treatment goals tailored to each child's unique profile, the implementation of evidence-based treatment methods, and the concrete documentation of significant and measurable client progress in various facets of language development.

Key Elements of the iPLP

1. Structured and Systematic Treatment Framework

   • Treatment is conducted within a highly organized framework that is structured to provide clear expectations, systematic in its progression of skills, and salient to the child's communicative needs. This deliberate design ensures explicit teaching of new language forms and functions, promoting effective skill acquisition, retention, and generalization into everyday contexts.

2. Alignment of Treatment Intensity with Self-Regulation Needs

   • A critical aspect of maximizing intervention efficacy involves a careful modification of the program's intensity to precisely align with each child’s unique self-regulation capabilities. Children with significant self-regulation challenges (e.g., in attention, emotional control) may initially experience reduced treatment effectiveness. Therefore, assessing and adapting intensity levels is paramount for optimizing engagement, minimizing frustration, and ultimately enhancing learning outcomes.

3. Efficient and Targeted Language Sampling

   • The program employs highly efficient and targeted language sampling methodologies. These methods are designed to accurately capture and assess a child’s current spontaneous language abilities, providing an ecological and comprehensive baseline. The insights derived from these samples are instrumental in guiding the precise selection and individualization of treatment goals, ensuring they are developmentally appropriate and functionally relevant.

4. Focused Progression of Syntax Complexity

   • A primary intervention target is the gradual increase in syntax elaboration and complexity. This systematic approach aims to build a robust grammatical foundation, progressing from simpler sentence structures to more intricate forms. By strengthening syntactic skills, the program maximizes overall progress in expressive language, enabling children to communicate more nuanced and sophisticated ideas.

5. Development of Narrative Macrostructure

   • Intervention explicitly targets the development of narrative macrostructure, which encompasses the organizational components of storytelling (e.g., plot, character development, conflict resolution). Strong narrative skills are recognized as foundational for crucial social communication, enabling effective peer interaction, and academic success, as they underpin literacy development and comprehension of complex texts.

6. Comprehensive Language Sample Analysis (LSA)

   • Both targeted and global Language Sample Analysis (LSA) are utilized extensively throughout the program. LSA provides objective, quantifiable measures of treatment outcomes, allowing clinicians to track progress rigorously. This data-driven approach is essential for informing ongoing intervention adjustments, ensuring that strategies remain effective and responsive to the child's evolving language profile.

Program Overview

• Structure: The iPLP is meticulously structured to provide a concentrated and immersive language learning environment.

  • Duration: It is an intensive 4-week program, consistently administered during the month of July, leveraging the summer period for uninterrupted intervention.

  • Schedule: The program runs 4 days per week, with each day consisting of 2.5 hours of direct therapeutic intervention. This totals a significant 10 hours of direct contact therapy per week. This high-dosage model is intentionally designed to accelerate skill acquisition, reinforce learning, and maximize the generalization of newly learned language abilities into varied communicative contexts.

  • Activities: The daily schedule is carefully balanced to include a diverse array of therapeutic modalities: 30 minutes of individualized one-on-one therapy focused on specific goals; 30 minutes of small group therapy (comprising 2-3 children) to foster peer interaction and shared learning; and an extensive 90 minutes of whole-group therapy. These sessions are seamlessly embedded within engaging, naturalistic activities such as interactive circle time, structured snack times, imaginative dramatic play scenarios, and creative crafts projects. This multi-contextual approach is crucial for promoting the spontaneous use and generalization of target language skills across different social and communicative settings.

• Participants: Each program cycle thoughtfully enrolls 6 children, aged 3-5 years, all formally diagnosed with language disorders. Since its establishment, the iPLP has proudly seen a total of 57 children successfully complete the program, with documented evidence of sustained positive language and communicative outcomes.

• Profile of Participants: The program is designed to be inclusive, addressing the needs of a diverse cohort. This includes children diagnosed with Developmental Language Disorder (DLD), a significant portion of whom are also Dual-Language Learners (DLLs). Additionally, the program supports children with co-occurring conditions such as Autism Spectrum Disorder (ASD), Speech Sound Disorder (SSD), and Attention-Deficit/Hyperactivity Disorder (ADHD). A specific emphasis is placed on developing tailored strategies for DLLs to ensure culturally and linguistically equitable, as well as highly effective, intervention.

Critical Element 1: Structured Treatment Framework

• Approaches: The iPLP integrates a versatile range of evidence-based intervention approaches to cater to diverse learning styles and therapeutic goals.

  • Clinician-directed approaches (CDAs): In CDAs, the clinician assumes a highly directive role, meticulously structuring the environment and activities to elicit specific target responses. This often involves explicit instruction, drill-and-practice sequences, and systematic reinforcement. While highly efficient for the initial acquisition of novel language forms (e.g., specific grammatical structures, vocabulary items), the context is typically less naturalistic.

  • Child-centered approaches (CCAs): Conversely, CCAs prioritize the child's initiative and natural interests. The clinician strategically observes and follows the child's lead, embedding therapeutic targets within spontaneous play and interactions. This approach creates authentic, intrinsically motivating opportunities for communication, which is particularly effective for promoting the generalization of language skills into functional and everyday contexts. Examples include responsive language techniques like recasting, expanding, and self-talk.

  • Hybrid approaches: The iPLP primarily utilizes hybrid approaches, which represent a skillful synthesis of the strengths of both CDAs and CCAs. These approaches allow clinicians to predetermine specific language goals and structure activities (like a CDA) but implement them within more naturalistic, play-based, or conversational contexts (like a CCA). This flexible balance optimizes both the efficiency of skill acquisition and the effectiveness of generalization.

• Key Principles: The structured framework is grounded in several core principles that ensure impactful and child-centric intervention.

  • Salient Communicative Functions: Intervention prioritizes establishing language targets that serve clear and meaningful communicative functions within highly functional and relevant contexts. This ensures that what children learn is directly applicable and boosts their ability to express needs, share ideas, and interact effectively in their daily lives.

  • Active Engagement: Before introducing explicit, goal-oriented expectations, a significant emphasis is placed on securing and sustaining the child’s active engagement. This is achieved through the careful selection of highly motivating, age-appropriate activities that intrinsically capture and maintain their attention and enthusiastic participation, thereby creating an optimal learning environment.

  • Individualized Treatment Goals: Each child undergoes comprehensive pretreatment assessments, forming the foundation for meticulously developed individualized treatment goals. These goals are precisely tailored to the child's unique profile of strengths and challenges, with a primary focus on systematically enhancing syntax complexity and cultivating robust narrative skills.

• Multiple Contexts and Levels of Language: To ensure comprehensive language development and robust generalization, treatment is dynamically targeted across a wide spectrum of communicative genres and varying levels of linguistic complexity. For instance, language skills are practiced in functional play interactions, structured narrative retellings, and descriptive tasks. This multi-contextual and multi-level approach maximizes the child's exposure to target language forms, facilitates their versatile application, and significantly enhances the effectiveness of learning across diverse communication demands.

Critical Element 2: Treatment Intensity and Self-Regulation

• Definition of Intensity: Within the iPLP, treatment intensity is rigorously defined to ensure a quantifiable and systematic approach to intervention.

  • Dosage: Dosage refers specifically to the number of discrete teaching episodes or explicit learning opportunities delivered to a child within a given unit of time (e.g., per session, per hour). These episodes encompass direct instruction, modeling, prompting, and reinforcement.

  • Cumulative Intensity: This metric provides a comprehensive measure of the total therapeutic exposure a child receives over the entire course of intervention. It is calculated using the formula:
    \text{Cumulative Intensity} = \text{Dose} \times \text{Dose Frequency} \times \text{Total Intervention Duration}
    Here, Dose represents the number of learning opportunities per session, Dose Frequency is the number of sessions per week, and Total Intervention Duration is the overall length of the program in weeks. This precise quantification allows clinicians and researchers to analyze the direct relationship between therapeutic input and observed child outcomes, optimizing the efficiency of the program.

• Importance of Self-Regulation: A child's self-regulation skills are profoundly influential in determining the effectiveness of intensive language intervention. Children presenting with high self-regulation needs—manifesting as significant challenges in sustaining attention, managing emotional responses, inhibiting impulsive behaviors, or maintaining task persistence—can experience reduced engagement and, consequently, a mitigated therapeutic benefit. To proactively address this, a specialized, individual assessment scale is integrated into the intake process. This scale thoroughly evaluates each child’s self-regulation capabilities, informing decisions regarding their suitability for the iPLP’s intensive structure and allowing for necessary proactive adjustments to the intervention plan, such as modifying presentation styles or providing increased support.

• Success of Mini Preschool Language Program (mPLP): To ensure that children with pronounced self-regulation challenges still receive optimal support, the Mini Preschool Language Program (mPLP) was developed and successfully implemented as an alternative. The mPLP is specifically designed for children identified with high self-regulation needs, operating at half the weekly duration (5 hours/week) and with a smaller enrollment size (3 children) compared to the iPLP. Despite its reduced intensity, the mPLP has demonstrated remarkable productivity, successfully empowering participants to achieve their appropriate language goals. This success underscores the critical importance of tailoring intervention intensity to align with each child’s specific behavioral and attentional capacities, proving that less intensive, specifically adapted environments can yield equally significant progress for this population.

Critical Element 3: Efficient Targeted Language Sampling

• Language Sampling Importance: Language Sample Analysis (LSA) stands as the universally acknowledged "gold standard" for the comprehensive assessment of expressive communication in children. Its paramount value lies in its high ecological validity, as it directly assesses a child's spontaneous, functional language use in naturalistic contexts, rather than relying solely on decontextualized tests. LSA is exceptionally powerful for accurately identifying the presence, nature, and specific patterns of language disorders; furthermore, it offers an indispensable, dynamic tool for precisely monitoring a child's linguistic progress, detailing changes in their vocabulary, syntax, morphology, and discourse skills over the course of intervention.

• LSA Use and Protocol: To ensure both efficiency and rigorous accuracy in its application, the iPLP critically leverages advanced technological tools, notably the Systematic Analysis of Language Transcripts (SALT) software. SALT facilitates the transcription, annotation, and detailed quantitative and qualitative analysis of language samples. The comprehensive protocol for LSA within the program involves collecting multiple types of representative language samples to provide a holistic linguistic profile:

  • 100-utterance play samples: These samples are elicited during naturalistic, free-play interactions, designed to capture typical conversational language and spontaneous communication in a highly engaging, child-centered context.

  • Narrative Language Measures (NLM): These assessments specifically target a child’s emergent storytelling abilities, evaluating their capacity to construct coherent and cohesive narratives spontaneously.

  • Story retell assessments: These tasks evaluate a child’s comprehension of a presented story and their ability to expressively organize and recount key events and details. This provides insight into both receptive and expressive narrative skills.
    By analyzing these diverse samples collaboratively, the program gains comprehensive insights that profoundly inform the development of highly specific, evidence-based, and individualized treatment goals, ensuring they are precisely aligned with each child's unique linguistic profile and needs.

Critical Element 4: Syntax Elaboration and Complexity

• Focus on Syntax: A core tenet of the iPLP's intervention model is a profound emphasis on systematically increasing a child’s syntactic complexity and elaborative abilities. This is achieved through a repertoire of deliberate and targeted strategies:

  • Phrase Expansions: Clinicians actively guide children in expanding simple sentences by incorporating a richer variety of grammatical elements. This includes adding descriptive adjectives (e.g., "the big red ball"), modifying verbs with adverbs (e.g., "ran quickly"), and introducing prepositional phrases to provide spatial or temporal information (e.g., "climbed up the tree").

  • Structured Narrative Retelling Exercises: Children engage in activities where they retell stories with explicit prompts and models for using more complex sentence structures, ensuring they move beyond simple subject-verb-object statements.
    Strengthening syntax is not merely an isolated goal; it provides a critical foundational support that profoundly influences and enhances all other language components. It improves morphology (e.g., use of -ing, -ed endings as part of verb phrases), enriches semantics (by allowing for more precise and detailed meaning expression), and refines pragmatics (enabling clearer, more coherent, and socially appropriate communication).

• Preliminary Data: Data collected prior to and during the program consistently reveals a significant challenge among children diagnosed with Developmental Language Disorder (DLD) in spontaneously producing and understanding complex syntactic structures. This often presents as shorter, less varied sentence constructions or difficulties with embedded clauses. Acknowledging this, the intervention framework is strategically designed to initiate at foundational levels of syntax (e.g., simple SVO sentences) and then systematically scaffold to suitable increases in complexity. This progression is carefully integrated with the child’s developing narrative formulation abilities, ensuring that syntactic growth supports and is supported by their evolving storytelling skills.

Critical Element 5: Narrative Macrostructure for Success

• Importance: The development of robust narrative skills is recognized as fundamentally critical for a child's overall communicative and cognitive development. These skills serve as an essential bridge, connecting proficient oral language abilities with foundational literacy skills necessary for academic achievement. Strong narrative abilities enable children to recount personal experiences, share fictional stories, and comprehend complex information, which are vital for both social communication (e.g., engaging in peer conversations, sharing information) and academic success (e.g., understanding classroom lessons, reading comprehension, writing). The iPLP actively and explicitly aims to improve these narrative skills through a combination of direct instruction and highly engaging, interactive activities. A cornerstone strategy is the utilization of story grammar instruction, which employs clear visual aids, such as icons or graphic organizers, to represent the essential components of a story. These key story grammar elements include: Character (who the story is about), Setting (where and when the story takes place), Initiating Event (the event that starts the problem), Internal Response (the character's feelings or thoughts about the problem), Plan (what character intends to do), Attempt (what the character actually does), Consequence (the result of the attempt), and Resolution (how the story ends). This visual and structured approach helps children organize their thoughts and retell or create coherent narratives.

• Learning Stages: The program strategically leverages imaginative, naturalistic play as a highly engaging and effective medium for fostering narrative development. Children are systematically guided through progressively complex learning stages of narrative structure using carefully designed play-based activities.

  • Early Stages: In simpler dramatic play scenarios, the focus might be on developing foundational story elements, such as identifying and describing a clear Character (e.g., playing "vet" with a specific animal toy) and establishing a distinct Setting (e.g., building a "house" out of blocks).

  • Intermediate Stages: As children progress, activities evolve to encourage the introduction of an Initiating Event or a simple Problem within play, prompting them to think about cause and effect.

  • Advanced Stages: More complex scenarios are introduced, encouraging children to articulate a Plan, enact an Attempt to solve the problem, experience a Consequence, and ultimately devise a Resolution. This methodical scaffolding process effectively builds and elaborates narrative macrostructure, preparing children for more sophisticated storytelling and literacy tasks.

Critical Element 6: Measuring Change with LSA

• Challenges: Accurately measuring meaningful and statistically significant change in language abilities across heterogeneous groups of children presents inherent complexities. This difficulty arises from the wide variability in children’s baseline language abilities, their diverse diagnostic profiles (e.g., DLD, ASD, DLL), and the unique manifestations of their specific language deficits. For instance, a child with significant syntactic deficits might show different patterns of progress than one primarily struggling with vocabulary. To overcome these measurement challenges and provide a comprehensive picture of intervention effectiveness, the iPLP strategically employs a dual approach involving both global and targeted Language Sample Analyses (LSAs).

• Targets and Analysis: This multi-faceted approach combines broad and specific measures to capture the full scope of a child’s linguistic development:

  • Global LSA Measures: These provide an overarching benchmark of general language growth and proficiency. Key metrics include:

    • Mean Length of Utterance (MLU \text{in morphemes}): This quantitative measure reflects utterance length and complexity, often increasing as language develops.

    • Number of Different Words (NDW): An indicator of lexical diversity and vocabulary richness.

    • Complex Sentence Production: Measures the frequency and accuracy of sentences containing multiple clauses (e.g., relative clauses, subordinate clauses), reflecting syntactic sophistication.

  • Targeted Measures: These are highly specialized analyses employed for precisely monitoring the acquisition and generalization of specific intervention targets. Examples include:

    • Acquisition of particular grammatical structures: Tracking the accurate and spontaneous use of specific morphological markers (e.g., regular past tense verbs -ed, third-person singular -s), or the correct usage of auxiliary verbs (e.g., is, are, have).

    • Inclusion of specific story grammar elements in narratives: Quantifying the presence and accuracy of elements like initiating event, plan, or resolution in a child’s storytelling.
      By integrating both global and targeted LSA, the program obtains a detailed and ecologically valid picture of each child’s progress, enabling data-driven adjustments to therapy and robust documentation of outcomes.

Case Studies

The following case studies illustrate the practical application of the iPLP's critical elements and document the significant progress achieved by individual participants.

Case Study 1: Client A

• Profile: Client A was a 4-year-old monolingual English-speaking child diagnosed with Developmental Language Disorder (DLD) and Speech Sound Disorder (SSD). Notably, Client A exhibited consistently strong engagement and effective self-regulation skills from the outset of the program. This foundational strength significantly facilitated their participation in the intensive, structured activities of the iPLP, allowing them to consistently absorb and apply new linguistic concepts.

• Progress: Over the course of the 4-week program, Client A demonstrated a significant and measurable increase in the accurate and spontaneous use of main verbs within sentences, along with a marked improvement in constructing grammatically correct Subject-Verb-Object (SVO) sentences. Detailed and systematic language sample analyses, conducted using tools like SALT, rigorously documented substantial gains in Client A's overall syntactic performance. These gains were evidenced by an improved grammatical productivity (more varied sentence types) and an increased complexity of sentence structures, indicating a stronger foundation in expressive language.

Case Study 2: Client B

• Profile: Client B was a 5-year-old bilingual child diagnosed with a mixed receptive-expressive language disorder, primarily associated with Autism Spectrum Disorder (ASD). Client B presented with notable high self-regulation needs, including challenges with maintaining joint attention and task persistence, which necessitated consistent one-on-one adult support and highly individualized motivational strategies to ensure active engagement and effective participation in structured therapeutic activities. This client's profile underscored the importance of adaptive intensity.

• Progress: Through carefully tailored strategies, including modifications to activity structure and frequent positive reinforcement, Client B achieved a noticeable increase in overall sentence production length and complexity, moving beyond single-word or short phrases. This progress was accompanied by improved clarity and coherence in their communication, making their messages easier for listeners to understand. Client B demonstrated considerable progress across both targeted expressive and receptive language goals, including an enhanced ability to follow multi-step directions and formulate more elaborate and appropriate responses in conversational exchanges.

Case Study 3: Client C

• Profile: Client C was a 4-year-old monolingual child diagnosed with Developmental Language Disorder (DLD). Throughout the therapy sessions, Client C consistently required targeted adult support and specific scaffolding strategies, such as visual cues and structured prompts, to maintain attention and focus, particularly during longer activities. This highlighted the continuous need for dynamic scaffolding within the structured framework.

• Progress: Client C exhibited observable and quantifiable improvements in their narrative skills, particularly evident in the logical sequencing of events and the more consistent inclusion of key story grammar elements (e.g., character, setting, initiating event, consequence, resolution) in their storytelling. Beyond narrative abilities, Client C also demonstrated increased grammatical accuracy in their spontaneous speech and produced more fluent utterances, with fewer hesitations. This sustained progress indicated Client C's consistent effort toward integrating complex narrative elements into both spontaneous stories and structured retell tasks throughout the intensive course of treatment.

Conclusions and Future Directions

The meticulous examination of the six critical elements within this article confirms that they collectively form a robust, evidence-based, and highly adaptable foundation for delivering effective language intervention. This framework is transferable across a variety of clinical settings and for diverse populations of children with language disorders. The program’s inherently child-focused approach is not only systematically designed for maximal effectiveness in specific language skill enhancement but also uniquely fosters greater self-regulation awareness and capabilities within the dynamic, interactive context of therapy. This dual benefit underscores the holistic impact of the iPLP. Looking ahead, future research should prioritize rigorous, longitudinal studies to thoroughly investigate the long-term impact and sustained benefits of these critical elements on children’s academic, social, and communicative trajectories well beyond the intensive intervention period.

Limitations

It is crucial to acknowledge certain inherent limitations that necessitate caution when attempting to generalize these promising findings across all populations and clinical contexts. The present study was conducted with relatively small sample sizes in each program cycle, and within a highly specific program structure (intensive summer format, particular age range). These factors, while contributing to the program’s focus, inherently limit the broader applicability of the results to other demographic groups, intervention durations, or service delivery models. To enhance external validity and strengthen the generalizability of these findings, further rigorous exploration is imperatively necessary. This should involve studies with significantly larger and more diverse participant samples, ideally conducted across a wider range of clinical and educational settings, including public schools and various private practices, to comprehensively validate and extend these findings.

References

This section contains a comprehensive and meticulously curated list of all academic and professional references cited throughout the article. These references are instrumental in showcasing key foundational research, empirical studies, and existing findings that are highly relevant to the theoretical underpinnings and practical application of the targeted discussion points within the language programs and intervention strategies presented. The inclusion