Speech Sound Disorders in Children
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Speech Sound Disorders in Children

Articulation & Phonological Disorders

John E Bernthal, Nicholas W Bankson, Peter Flipsen

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eBook - ePub

Speech Sound Disorders in Children

Articulation & Phonological Disorders

John E Bernthal, Nicholas W Bankson, Peter Flipsen

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Über dieses Buch

For forty years, this textbook has been the gold-standard resource for providing speech-language pathologists with a strong foundation of knowledge on speech sound disorders. Previously published as Articulation and Phonological Disorders, this core text is now in its ninth edition, fully updated and expanded to meet the needs of today's clinicians as they work with children of all ages.

A cornerstone of every SLP's professional preparation, the new edition of this book offers the most up-to-date, comprehensive coverage of contemporary clinical literature and the best available treatments for speech sound disorders. With a focus on evidence-based practice, the expert authors and contributors present essential information and guidelines on a broad range of topics, from the basics of typical speech production to recommended practices for assessment and intervention. Updates include new and expanded chapters on timely topics, new instructor materials and student-friendly features, and helpful guidance for clinicians serving an increasingly diverse population.

With this authoritative synthesis of research and practice, the next generation of SLPs will have the broad and deep knowledge they need to understand speech sound disorders and provide children with the best possible supports and interventions.


  • All chapters fully updated with the latest research and recommended practices
  • New chapter on treatment of childhood apraxia and speech sound disorders in older children
  • Expanded guidance on evidence-based practices and treatment basics
  • More on motor-based approaches to treatment
  • Extended discussion of language variation and dialect
  • New chapter on accent modification
  • New student-friendly features such as learning objectives and clinical vignettes to demonstrate treatment practices
  • Updated Online Instructor's Resource Manual and Test Bank

SELECTED TOPICS COVERED: fundamentals of typical speech production and acquisition • specific factors associated with speech sound disorders, including motor abilities, cognitive-linguistic factors, and psychosocial factors • classification and comorbidity in speech sound disorders • assessment and data collection procedures • using assessment data to make sound decisions about intervention • using evidence-based practices in treatment • motor-based treatment approaches • linguistically based treatment approaches • treatment of childhood apraxia of speech • phonological awareness development and intervention • assessment and intervention considerations for children from culturally and linguistically diverse populations • accent modification for second language learners

INSTRUCTOR MATERIALS INCLUDED: Faculty can easily incorporate this text into their course with the fully updated online Instructor's Resource Manual and Test Bank. Included are key points, discussion topics, and instructional ideas for each chapter, plus a bank of multiple choice, short answer, and essay questions.

Need the book before November? The ebook of Speech Sound Disorders in Children will be available in August, just in time for your fall classes.

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Introduction to the Study of Speech Sound Disorders
This chapter introduces the reader to a major subdiscipline of the field of speech-language pathology—speech sound disorders. By the end of this chapter, the reader should be able to:
•Describe how the practice of working with individuals with speech sound disorders has evolved over time.
•Understand the basic distinction between articulation and phonological disorders, and some of the limitations of that distinction.
•Understand how common speech sound disorders are and how they arise.
•Discuss the importance of working with individuals with speech sound disorders.
•List the three main elements of evidence-based practice.
Welcome to the world of clinical intervention for individuals with speech sound disorders! You are about to learn about one of the most frequently occurring communication disorders that speech-language pathologists (SLPs) encounter. We use the term clinical to indicate that this book is focused on how you, as a clinician, will assess and treat disorders related to speech sound production. This is in contrast to studying production of speech sounds from the standpoint of phonetics, linguistics, or acoustics—any one of which is often a course of study in and of itself. Although knowledge from each of these areas is important background information in the study of speech sound disorders, the distinguishing characteristic of this text is that it is focused on individuals, primarily children, who have difficulty learning to produce and appropriately use the speech sounds of the language.
Concerns about speech sound production are certainly not a new area of study. An early work by Samuel Potter called Speech and Its Defects, for example, appeared in 1882. According to Moore and Kester (1953), formal studies of what was then called speech correction began to proliferate in the first decade of the 20th century. Organized efforts to address these problems in the public schools appear to have begun in the United States as early as 1910 in Chicago, Illinois, and 1916 in New York City. At about this same time, studies of the prevalence of speech problems in schoolchildren began to appear, with formal reports appearing from places such as St. Louis, Missouri (Wallin, 1916), and Madison, Wisconsin (Blanton, 1916). Growing concern for speech sound difficulties and the need for study of speech sound disorders and other communication disorders resulted in the 1925 formation of the American Academy of Speech Correction, which was the predecessor to our current professional body, the American Speech-Language-Hearing Association (ASHA) (Moore & Kester, 1953).
Moving forward in time, documenting the overall prevalence of communication disorders, beyond just speech sound disorders, continued to be of interest (e.g., Burdin, 1940; Carhart, 1939; Louttit & Halls, 1936; Mills & Streit, 1942; Morley, 1952). In addition, practitioners soon began to have a strong interest in understanding the underlying nature of these problems. This need to better understand speech sound disorders likely motivated the establishment and subsequent publication in 1936 of the Journal of Speech Disorders. The desire to have a scientific basis for this work in speech and communication disorders also likely led to the publication of the first edition of the classic text Speech Correction: Principles and Methods (Van Riper, 1939). Numerous journals and texts would follow as the breadth of the research related to these disorders expanded. The text that you are currently reading follows in that tradition.
As our knowledge base grew, so too did our focus on remediation of speech sounds. As an aside, until the 1960s, the area of language disorders in children was barely recognized as something within the province of the SLP. In fact, there were many discussions as to whether the profession should be engaged in studying and working with language disorders in children. However, interest in adult language disorders had already emerged. Brain injuries sustained by soldiers in World War II had resulted in an increasing prevalence of adult aphasia and motor speech disorders. For many years, however, SLPs were mostly concerned with speech sound production errors in school-age children and adults.
As time went by, the desire for better treatment outcomes led to many developments, including a focus on younger children. The idea was to work with children at younger ages to avoid the development of strongly ingrained incorrect speech production habits. This focus was also driven by the passage of several pieces of federal legislation (e.g., Education of all Handicapped Children Act in 1975, Education of the Handicapped Amendments in 1986), which mandated the services first to preschoolers (those aged 3 to 5 years) and then to infants and toddlers (birth to 3 years of age). No longer was it sufficient for SLPs to focus on individual sounds such as incorrect productions of /s/ or /r/. SLPs now had to look more carefully at children who produced errors on many sounds and thus were often very difficult to understand, not to mention the possibility of having accompanying language impairments. As part of the interest in child language disorders, the field then started to look more closely at the relationship between spoken and written language, as we saw that children with speech sound disorders may be at increased risk for reading difficulties and other significant challenges with classroom learning. Practitioners also began to publish reports and talked about children with coexisting (or comorbid) difficulties with other aspects of communication. For example, children might have a speech sound disorder and a voice disorder, a speech sound disorder and an expressive language disorder, or a speech sound disorder and a fluency (stuttering) disorder.
The field of speech-language pathology also had to deal with a changing perspective on what constitutes “normal” speech. Publications like sociolinguist William Labov’s 1969 paper entitled “The Logic of Non-standard English” forced SLPs to think very differently about notions of difference and disorder. If dialects are rule-governed variations of a language that are accepted as normal by a community of speakers, who are we to label them as speech disorders that need to be fixed? On the other hand, each dialect community likely includes similar percentages of individuals who struggle to learn to communicate effectively. Sorting out whether a particular speaker is demonstrating the normal features of a dialect other than our own or has a disorder that must be attended to is often a challenge.
Dialects evolve within cultural contexts. Related to discussions of such contexts are considerations of second-language learners. As immigration patterns and population demographics continue to change, SLPs increasingly find themselves working with non-native speakers of the language. Although we are not usually qualified as English as a second language teachers, we may have a role to play in such cases. As with speakers of unfamiliar dialects, it would be reasonable to expect that some small percentage of second-language learners may also have speech or language-learning challenges, and we may be asked to help determine whether there is a disorder present. In addition, some of the clinical skills we have for working with speech sound disorders can be helpful in modifying foreign accents, for individuals who seek such elective services.
The term presently recommended by ASHA to identify people who have disorders related to producing the sounds of the language is speech sound disorders. Historically, these disorders were referred to as articulation disorders—a term still in widespread use. From the time the profession of speech-language pathology came into existence in the 1920s until the 1970s, the prevailing viewpoint relative to speech sound disorders was that they reflected a client’s inability to either auditorally perceive or discriminate a particular sound or sounds, and/or to motorically produce these sounds. The role of the SLP was first to teach a client to discriminate a sound auditorally and then teach them to say it correctly by having them practice it until the new (correct) motor behavior became habitual.
When the first edition of this text was published in 1981, Articulation Disorders was used as the title of the book because that was still the prevailing term used to identify speech sound disorders. Beginning in the 1970s, as the first edition of this book was being written, and federal mandates began to emerge, the field of linguistics began to influence how our profession viewed speech sound disorders. Linguists, who study how speech sounds are used in various languages, pointed out that speech sound disorders should not be viewed only from a motor production and perception perspective, but also from the perspective that such difficulties may reflect a child’s lack of knowledge regarding where to appropriately use sounds that they can produce. Said another way, the child might be having difficulty acquiring the phonological rules of the language. For example, they may have difficulty learning to use sounds contrastively (e.g., /p/ and /f/ are contrasted in pine vs. fine) or in learning that certain sounds need to be placed at the beginning or ends of words to communicate effectively (e.g., at vs. hat; go vs. goat). Disorders related to learning the phonological rules of the language then began to be referred to as phonological disorders; thus, the term phonology was the second term (in addition to articulation) that moved into our vocabulary to identify speech sound disorders.
From the second edition of this book (1988) through the eighth edition, the terms articulation and phonological have been used in the title of the book (i.e., Articulation and Phonological Disorders). Some SLPs have differentiated these two terms for purposes of assessment and treatment of speech sound disorders. Articulation disorders refer to production-based (or motor-based) speech sound errors, and phonological disorders denote speech sound errors that are rule based (or linguistically based). However, in reality, it may be difficult to determine which of these concepts is most appropriate to describe a particular client’s error(s) productions. We must also recognize that there may be variables beyond motor production and rule acquisition that we need to attend to when we try to understand speech sound disorders. The revised title of this latest edition of the book reflects our attempt to better encapsulate the relationships among all of these terms.
ASHA, in its clinical portal (a website designed to assist clinicians), has defined speech sound disorders as “an umbrella term referring to any difficulty or combination of difficulties with perception, motor production, or phonological representation of speech sounds and speech segments—including phonotactic rules governing permissible speech sound sequences in a language” (ASHA, n.d.-c). In this book we use the terms articulation, phonology, and speech sound disorders somewhat interchangeably, but will hold to the traditional differentiation we have referred to between articulation and phonology when we talk about assessment and treatment.
Speech sound disorders may be described as ranging from something as mild as a lisp (interdentalizing the /s/ sounds; sometimes identified as substituting /θ/ for an /s/) to a disorder as significant as that found in an individual who is completely unintelligible. The terms delay and deviant are concepts that are often used to describe the nature of the sound errors produced by children. Delay refers to speech sound errors that are often noted as normal errors found in young children as they learn the proper use of sounds (e.g., lisps, misarticulations of /r/ or the affricates, sound substitutions and omission of sounds) but which persist in some children. Deviant refers to errors not typically observed in young children’s development (e.g., lateralization of sibilants, backing of alveolars, vowel errors). It should be noted that some scholars argue that the labels delay and deviance are not particularly useful because, in terms of overall language development (including speech sounds), delay often leads to deviance. This progression occurs because of the high degree of coordination involved in the development of all aspects of language (e.g., speech sounds, vocabulary, syntax). If one area is slow to develop (i.e., delayed), it may lead to difficulties across several areas of development, which results in errors that we might then describe as deviant.
Typically, speech sound disorders are seen in children, and the pediatric population is the focus of this text. As discussed earlier, there have been many estimates and studies of how common these disorders are (i.e., their prevalence). In 2003, Campbell and colleagues presented data suggesting that speech sound disorders occur in approximately 15.6% of 3-year-old children. A prevalence of 11% was reported by Dodd and colleagues (2018) in a group of 1,494 Australian 4 year olds. Findings reported by Shriberg et al. (1999) indicated that by age 6 years, up to 3.8% of that age group continues to have difficulty with speech sound production. The differences in prevalence between these three percentages indicates that many of these problems are resolved during the preschool period. Although a positive trend, it does not remove the need for intervention for some children in order to learn accurate production of speech sounds. This is seen most obviously in the report of Mullen and Schooling (2010), who reported in a national study, among prekindergarten children referred for possible communication difficulties, that approximately 75% were identified as having articulation/intelligibility difficulties (the most frequently identified disorders category). In addition, in that same study it was reported that up to 56% of the overall caseloads of school-based clinicians may involve instruction of speech sound production problems. More recently, a 2018 survey by ASHA indicated that 90% of clinicians working in the schools regularly serve children with speech sound disorders.
The nature of SLPs’ work with speech sound disorders has expanded in recent decades. As mentioned previously, many of these disorders often coexist with disorders in comprehension or production of language (something we discuss in more detail later in this text). Most speech sound disorders occur in children under the age of 8 years, but speech sound production errors may persist past that point and occur in older children and adults. Working with older children and adults may require some unique considerations, and thus a major portion of a separate chapter is devoted to that group. Information contained in this book is relevant to the treatment of any client who faces difficulties producing speech sounds; however, adult speech sound disorde...