School-Based Service Delivery in Speech-Language Pathology

This resource is designed to provide information about the range of service delivery models in schools, considerations for providing these services, and relevant resources. Information included will assist speech-language pathologists (SLPs) in meeting the tenets of the Individuals with Disabilities Education Act (IDEA; 2004) by delivering a free and appropriate public education program (FAPE) in the least restrictive environment (LRE) for students with communication disabilities in schools.

Service delivery is a dynamic process whereby changes are made to:

  • Setting – the location of treatment (e.g., home, community-based, school, pull-out or within the classroom)
  • Dosage – the frequency, intensity, and duration of service
    • frequency (the number of treatment sessions over a set period of time)
    • intensity (the amount of time spent in each treatment session)
    • duration (the length of treatment received)
  • Format – the type of session
    • one-on-one (i.e., individual)
    • in a group, or
    • via consultation with other school staff and/or family/caregiver
  • Provider – the person administering the treatment (e.g., SLP, support personnel, trained volunteer, caregiver)

According to Part C of IDEA, services to children from birth to age 3 should be family centered and provided in natural environments, such as the child's home and community settings, to the greatest extent appropriate to meet the individual needs of the child. For more information and resources on birth to age 3, see ASHA's Early Intervention resource.

Similar provisions are provided under Part B of IDEA for preschool and school-age students (ages 3–21 years). These provisions require that children with disabilities be provided with a FAPE and be educated in the least restrictive environment. LRE means being educated with children who do not have disabilities "to the maximum extent appropriate" to meet the specific educational needs of the student.

On this page:

Approaches to Service Delivery

Selecting the most appropriate service delivery model is a fluid process. While no single model is appropriate for all students, one must understand the range of service delivery models as well as the advantages and limitations of each model (Nippold, 2012). Student outcomes may be improved if a flexible approach to scheduling and service delivery is adopted. The frequency, location, duration, and intensity of services should be reviewed and revised based on various factors, including:

A number of evidence-based practice studies have been conducted using different service delivery models and approaches, including:

  • A systematic review of research showed an advantage for classroom-based models in which the SLP and classroom teacher co-taught language lessons (McGinty & Justice, 2006).
  • Teachers who participated in a collaborative speech-language pathology program were more aware of the impact of the communication disorder on their student's abilities and made more appropriate classroom adaptations (Ebert & Prelock,1994).
  • Greater increases in the completeness and intelligibility of student utterances, measured via Systematic Analysis Language Transcripts or SALT (Miller & Chapman,1986) transcription, were seen with classroom-based collaborative services versus direct pullout services (Bland & Prelock, 1995).
  • Students who received a comprehensive classroom teacher and SLP collaborative intervention program achieved higher scores in listening and writing, and higher abilities in understanding vocabulary when compared with control peers (Farber & Klein, 1999).
  • The collaborative model was more effective for teaching curricular vocabulary to students who qualified for speech-language services than (a) a classroom-based model (with the SLP and classroom teachers working independently) or (b) a traditional pullout model (Throneburg, Calvert, Sturm, Paramboukas, & Paul, 2000).
  • Classroom-based services may be more effective with regard to generalization than pullout therapy services for some areas of language intervention and may result in greater generalization of new skills to other natural settings (Archibald, L.M. 2017, Cirrin et al., 2010; McGinty & Justice, 2006).
  • Preschool children receiving classroom-based intervention demonstrated a greater ability to generalize the new words that they learned to their home setting (Wilcox, Kouri, & Caswell,1991).
  • Children with mild to moderate speech sound disorders can receive comparable cumulative intensity of therapy and make similar gains when receiving a short, frequent, individual service delivery model (e.g. 3 times per week for 5 minutes) than from a business as usual model. (Byers,et al. 2021)

Combining service delivery models allows the SLP to focus on the individual needs of students, ensure the educational relevance of speech-language services, and reflect on treatment effectiveness.


Speech-Language Resource Room

Services provided in a separate room—away from the general education classroom—have long been the traditional location for speech-language service delivery. This location allows for focused individual or small-group service delivery but removes students from their peers who are typically developing, and some classroom instructional time is missed.

Integrated/In-Class Services

By providing integrated/in-class services, SLPs work closely with teachers and classroom staff—along with other specialized instructional support personnel (SISP)—to collaboratively address students' goals. This increases team coordination and competency to provide assistance and support to students. Research shows that when SLPs model and instruct on how to implement recommended accommodations and modifications, results include improved communication interactions within the classroom setting (Blosser, 2011).

Determining which model to use within the general education classroom is based on student need and collaboration with the teacher. A variety of in-class models are in use (Cook & Friend, 1995):

  • Supportive co-teaching—The SLP and teacher partner together as co-teachers. One takes the lead in instructing the class while the other moves among students in order to provide prompts, redirection, or direct support and vice versa.
  • Complementary co-teaching—The SLP and teacher partner together as co-teachers during whole-group instruction. One enhances the instruction provided by the other co-teacher by providing visuals, examples, paraphrasing, and modeling.
  • Station teaching—instructional material is divided into parts, with the SLP and the classroom teacher(s) each taking a group of students. Students rotate to each station, or learning center, for instruction.
  • Parallel co-teaching—the students are divided, and the classroom teacher and the SLP each instruct a designated group of students simultaneously in different areas of the same classroom, with the SLP taking the group of students that needs more modification of content or slower pacing in order to master the educational content.
  • Team co-teaching—the SLP and the classroom teacher plan, teach, and assess all of the students in the classroom. Capitalizing on the strengths and skill sets of the SLP and the teacher, these teaching partners alternate between serving as the lead or providing support.
  • Supplemental teaching—one person (usually the teacher) presents the lesson in a standard format while the other person (usually the SLP) adapts the lesson.

The Florida Inclusion Network has developed a Collaborative Teaching video that highlights six collaborative teaching models:

  • parallel teaching,
  • station teaching,
  • alternative teaching,
  • teaming,
  • one teach, one assist and
  • one teach, one observe.

Other Educational Settings

Speech-language services may be provided in a variety of educational settings, such as the playground, media center, lunchroom, vocational training site, music classroom, physical education room, and other classrooms. IDEA mandates that services be provided in the least restrictive environment and/or most natural setting.


Telepractice uses telecommunications technology to deliver speech-language services remotely (see ASHA's Practice Portal page on Telepractice). Technology allows the clinician to link to the student for assessment, intervention, and/or consultation. Studies have demonstrated that telepractice can be an effective service delivery model (Grogan-Johnson, Alvares, Rowan, & Creaghead, 2010; McCullough, 2001; Grogan-Johnson et. al., 2011; Lewis et al., 2008) and parents, students, and clinicians report satisfaction with this model (McCullough, 2001; Rose et al., 2000; Crutchley & Campbell, 2010). Factors to consider in schools when using telepractice as a service delivery option include:

Dosage and Format

Traditional Weekly Schedule

The SLP schedules students for services on the same time/day(s) every week. The location and group size can and may vary; for example, the SLP may provide one session of individual pullout treatment per week and may alternate small-group pullout sessions with classroom-based service delivery every other week.

Receding Schedule

The SLP provides direct services in intense, frequent intervention for a period of time and then reduces direct services while increasing indirect services. For example, in the first semester, the SLP works with a student 90 minutes per week on individualized education program (IEP) articulation goals. In the second semester, the SLP provides 15 minutes of direct services and 30 minutes of indirect services per week to allow for independent practice of target sounds and opportunities to monitor generalization with teacher and family (Rudebusch & Weichmann, 2013).

Cyclical Schedule

The SLP first provides direct services to students for a period of time and then follows that up with no services—or indirect services—for a period of time. The focus in the first phase is on learning new skills; the focus in the second phase is on monitoring the stabilization of skills.

The 3:1 model is an example of a cyclical schedule. Direct services are conducted for 3 weeks in a row, followed by indirect services and activities in the 4th week. IEPs reflect the service frequency (e.g., [direct service × minutes 3×/month] + [SLP consult × minutes 1×/month]). The week of indirect services could be referred to as a "student support week" to document that services are still being provided during that week. Indirect services can include the following:

  • Collaboration activities with teachers and others (e.g., SISP)
  • Classroom observations, screenings, meetings, and parent collaboration

Sharing informational handouts with parents and staff can be particularly helpful. Doing so highlights the benefits of the 3:1 schedule and informs them of the scheduled student support weeks (indirect) for the school year (Lancia, J., Noble, G., & Sweeney, S.J., 2009; Strong-Van Zandt, S., & Montgomery, 2006.

Block Schedule

Speech-language sessions are longer but less frequent, often reflecting a middle school's or high school's master block schedule, where there are fewer but longer classes every day or every semester. This schedule allows for fewer interruptions to the student's school day. Because class periods are longer, the SLP can provide a pullout session to practice a skill—immediately followed by in-class services to generalize the skills—all within the same class period (Rudebusch & Wiechmann, 2013).

Blast or Burst Schedule

In this schedule, speech-language services are provided in short, intense bursts (i.e., 15 minutes 3 times per week). This model allows the SLP to provide (a) individualized services, with less travel time to and from the therapy room as services could be provided right outside the classroom, and (b) less out-of-class time (Kuhn, 2006; Rehfeld & Sulak, 2021).

Group Size

Group sizes vary and fluctuate over time in response to dynamic service delivery. Considerations in grouping students includes grade level, abilities, similarities or compatibility of IEP goals. Student placement should be based on individual needs, where the most progress and benefit will occur. ASHA does not have a practice policy on determining group size in school based intervention. However, some states provide guidance based on third party payer mandates.

Indirect or Consultative Services

When providing indirect or consultative services, the SLP works with the student's teachers, staff, and family. Activities include the following:

  • Analyzing, adapting, modifying, or creating instructional materials
  • Programming or instructing others on augmentative and alternative communication (AAC) devices
  • Participating in team or IEP meetings
  • Monitoring student progress via data checks and observations
  • Conducting assessments or gathering baseline data
  • Planning interventions
  • Collaborating with teachers, other SISP, and families

Provider and Practicing at the Top of the License

Practicing at the top of the license has implications for SLPs in school settings. Many schools are experiencing tight budgets, large caseloads, and shortages of qualified providers; therefore, it is important that SLPs in school settings focus on providing professional services that (a) require the skills of an ASHA-certified SLP and (b) are within the Scope of Practice in Speech-Language Pathology. Routine tasks may be performed by other professionals (e.g., speech-language pathology assistants [SLPAs], paraprofessionals, etc.) under the supervision of the SLP or in concert with other SISP on the school team.


Workload refers to all activities required and performed by school-based SLPs and other professionals. Caseload (or the number of students served) is just one part of the SLP's workload. Reasonable workloads allow for optimal service delivery to students to meet their individual needs as required under IDEA. The workload analysis approach is explained in ASHA's Caseload and Workload Practice Portal resource.

IEP Documentation

IEP documentation can influence the service delivery model that an SLP uses to provide services in schools. According to ASHA's Practice Portal Page on Documentation in Schools, services must be provided "according to what is agreed upon and documented in the IEP, including the frequency, type, duration, and location of services." Service considerations must be individualized according to IDEA. Caseloads that have a large percentage of students receiving the same amount and frequency of services (e.g., 2×/week for 30 minutes) may not be appropriately meeting the IDEA service provision requirements.

Some districts or states are more flexible in how services can be documented on the IEP. They allow "minutes per reporting period or semester" as acceptable means of recording frequency and duration of services. Documentation that allows for contact hours or services per month would allow SLPs to vary service provision while still providing appropriate services that meet the student's needs in accordance with IDEA. IEPs could also reflect changes in the frequency and location of services, depending on the individual student's needs and progress (e.g., start with more intensive services to teach a new skill and transition to less frequent or in-class services). Check with your state Department of Education or district regarding their policies for reporting services.

ASHA's 2010 professional issues statement titled Roles and Responsibilities of Speech-Language Pathologists in Schools suggests a framework for providing services in schools. Included in this professional issues statement is a list of the SLP's range of responsibilities; several of those responsibilities relate to service delivery:

  • Program design—It is essential that SLPs configure school-wide programs that employ a continuum of service delivery models in the least restrictive environment for students with disabilities and that they provide services to other students as appropriate.
  • Collaboration—It is important that collaboration occur with parents/guardians and other support personnel (currently referred to as SISP) to provide appropriate services.
  • Leadership—It is important to advocate for appropriate services and ensure that service delivery is meeting the intent of IDEA.

Code of Ethics

ASHA's Code of Ethics (2016) is a framework of principles and standards of practice for providing speech-language pathology and audiology services. Ethical practice is required for maintaining both the ASHA Certificate of Clinical Competence (CCC) and the state license, as well as most educational certifications. SLPs need to adhere to ASHA's Code of Ethics when making decisions regarding service delivery in schools. The most recent Code of Ethics, revised in 2016, devotes particular attention to interprofessional practice. Rule A of Principle IV states, "Individuals shall work collaboratively, when appropriate, with members of one's own profession and/or members of other professions to deliver the highest quality of care." Additional information on ethical issues in schools can be found on ASHA's webpage titled Ethics and Schools Practice.

Evidence-Based Decision Making

ASHA's definition of evidence-based practice (EBP) includes three components—external scientific evidence, clinical expertise, and client perspectives. All three are considered when making decisions about services for students and are based on individual student needs. More information can be found on ASHA's webpage titled Evidence-Based Practice in Schools.

  • ASHA's Evidence Maps are designed to assist clinicians with making evidence-based decisions. Each Evidence Map provides information related to assessment of, treatment of, and service delivery for individuals with various communication disorders.
  • ASHA's web resource titled Roles and Responsibilities of Speech-Language Pathologists in Schools addresses the need for EBP in schools. EBP is consistent with IDEA and the Every Student Succeeds Act (ESSA; 2015), both of which require (a) the use of scientifically based practices, (b) the application of data-driven decisions, and (c) accountability for student outcomes.
  • An evidence-based systematic review (EBSR) of peer-reviewed articles was published in 2009 about the effect of service delivery models on speech-language intervention for elementary school–age students. The findings indicated the following:
    • "The current evidence base does not justify any broad conclusions about which service delivery models are preferable for which elementary school–age children with which specific communication needs...Thus, for the time being, IEP teams must rely more on reason than research in making service delivery decisions for individual students" (Cirrin et al., 2010). More research is needed on evidence-based service delivery models and intervention.

Varied Service Delivery

ASHA school-based members have reported that some local education agencies (LEAs) place restrictions on service delivery, such as limiting speech-language services to small-group pull-out intervention only, or requiring only classroom-based services, or preventing consultative/indirect services. Restricting service delivery prevents the individualized education program (IEP) team from developing an education program that meets the individual needs of the child, as services must meet a predetermined format, rather than reflect the needs of the child. Furthermore, caseloads become inflated with children making limited or no progress due to the inappropriate delivery of services.

To help SLPs think through service delivery, ASHA created a Varied Service Delivery Worksheet [PDF]. This resource serves as a framework for determining services that are the best fit for your students in light of the many factors SLPs must consider.

Making changes in service delivery may require advocacy on the part of the individual SLP or team of SLPs at the local or state level. Here are some points to consider when trying to effect change in the school setting:

  • How will service delivery changes benefit the students and their families?
  • How will changes provide more opportunities to support the student throughout the school day by working collaboratively with other school team members as a part of interprofessional practice (IPP)? See ASHA’s How To: Advocate for IPP in Your Clinic or School
  • How will changes allow for more efficient and effective services?


American Speech-Language-Hearing Association. (2016). Code of ethics. Rockville, MD: Author. Retrieved from

Archibald, L.M. (2017). SLP-educator classroom collaboration: A review to inform reason-based practice. Autism and Developmental Language Impairments. Retrieved from

Bland, L., & Prelock, P. (1995). Effects of collaboration on language performance. Journal of Children's Communication Development, 17(2), 31–38.

Blosser, J. (2011). Outcomes matter in school service delivery. Retrieved from

Byers, B.A., Bellon-Harn, M.L., Allen, M, Saar, K.W., Manchaiah, V., and Rodrigo, H. (2021). A Comparison of Intervention Intensity and Service Delivery Models With School-Age Children With Speech Sound Disorders in a School Setting. Language, Speech, and Hearing Services in Schools, 52, 529–541.

Cirrin, F., Schooling, T., Nelson, N., Diehl, S. Flynn, P., Staskowski, M...Adamczyk, D. (2010). Evidence-based systematic review: Effects of different service delivery models on communication outcomes for elementary school-age children. Language, Speech, and Hearing Services in Schools, 41, 233–264. Retrieved from

Cook, L., & Friend, M. (1995). Co-teaching: Guidelines for creating effective practices. Focus on Exceptional Children, 28(3), 1–16.

Crutchley, S., Dudley, W., & Campbell, M. (2010). Articulation assessment through videoconferencing: A pilot study. Communications of Global Information Technology, 2, 12–23.

Every Student Succeeds Act of 2015, Pub. L. No. 114-95, § 114 Stat. 1177 (2015–2016). 

Ebert, K. A., & Prelock, P. A. (1994). Teachers' perceptions of their students with communication disorders. Language, Speech, and Hearing Services in Schools, 25, 211–214. Retrieved from

Farber, J. G., & Klein, E. R. (1999). Classroom-based assessment of collaborative intervention program with kindergarten and firstgrade students. Language, Speech, and Hearing Services in Schools, 30, 83–91. Retrieved from

Grogan-Johnson, S., Alvares, R., Rowan, L., & Creaghead, N. (2010). A pilot study comparing the effectiveness of speech language therapy provided by telemedicine with conventional on-site therapy. Journal of Telemedicine and Telecare, 16, 134–139.

Grogan-Johnson, S., Gabel, R., Taylor, J., Rowan, L., Alvares, R., & Schenker, J. (2011). A pilot exploration of speech sound disorder intervention delivered by telehealth to school-age children. International Journal of Telerehabilitation, 3(1), 31–42. 

Heisler, L.A. and Thousand, J.S. (2019). A Guide to Co-Teaching for the SLP: A Tutorial. Communication Disorders Quarterly, 1–6. 

Individuals with Disabilities Education Improvement Act. (2004). Public Law 108-446, 20 U.S.C. 1400 et seq.

Kuhn, D. (2006). SPEEDY SPEECH: Efficient service delivery for articulation errors. Perspectives on School-Based Issues, 11(1), 3–7. Retrieved from

Lancia, J., Noble, G., & Sweeney, S. J. (2009, November). 25 strategies to make 3:1 service delivery work for you. Paper presented at the ASHA Annual Convention, Philadelphia, PA.

Lewis, C., Packman, A., Onslow, M., Simpson, J., & Jones, M. (2008). A Phase II trial of telehealth delivery of the Lidcombe Program of Early Stuttering Intervention. American Journal of Speech-Language Pathology, 17, 139–149. Retrieved from

McCullough, A. (2001). Viability and effectiveness of teletherapy for pre-school children with special needs. International Journal of Language and Communication Disorders, 36 (Suppl. 1), 321–326.

McGinty, A., & Justice, L. (2006). Classroom-based versus pullout interventions: A review of the experimental evidence. EBP Briefs, 1(1), 3–25.

Miller, J. & Chapman, R. (1986). SALT: Systematic analysis language transcriptsApple computer version [Computer program]. Madison, WI: University of Wisconsin-Madison, Waisman Center, Language Analysis Laboratory.

Nippold, M.(2012). Different service delivery models for different communication disorders. Language, Speech, and Hearing Services in Schools, 43, 117–120. Retrieved from

Rehfeld, D.M. & Sulak, T.N. (2021) Service delivery schedule effects on speech sound production outcomes. Language, Speech, and Hearing Services in Schools, 52, 728-737. Retrieved from

Rudebusch, J., & Wiechmann, J. (2013,A ugust 01). Time block after time block. The ASHA Leader, 18(8), 40–45.

Strong-Van Zandt, S., & Montgomery, N. (2006, November). A comparison of service delivery models: What practicing professionals report. Paper presented at the ASHA Annual Convention, Miami Beach, FL. 

Throneburg, R., Calvert, L., Sturm, J., Paramboukas, A., & Paul, P. (2000). A comparison of service delivery models: Effects on curricular vocabulary skills in the school setting. American Journal of Speech-Language Pathology, 9(1), 10–20.

Wilcox, M. J., Kouri, T. A., & Caswell, S. B. (1991). Early Language Intervention: A Comparison of Classroom and Individual Treatment. American Journal of Speech-Language Pathology, 1(1), 49–62.

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