Read the notes, then try the practice. It adapts as you go.When you're ready.
Session Length
~17 min
Adaptive Checks
15 questions
Transfer Probes
8
Speech therapy, formally known as speech-language pathology, is a healthcare discipline dedicated to the assessment, diagnosis, and treatment of communication disorders and swallowing difficulties. Speech-language pathologists (SLPs) work with individuals across the lifespan who experience challenges with speech sound production, language comprehension and expression, voice quality, fluency, cognitive-communication abilities, and feeding or swallowing function. The field draws on knowledge from linguistics, anatomy, neuroscience, psychology, and education to develop evidence-based interventions tailored to each client's unique needs.
Communication disorders can arise from a wide range of causes, including developmental delays, neurological conditions such as stroke or traumatic brain injury, genetic syndromes, hearing loss, structural anomalies like cleft palate, and degenerative diseases such as Parkinson's or amyotrophic lateral sclerosis. In pediatric populations, SLPs frequently address articulation disorders, phonological processes, language delays, childhood apraxia of speech, and stuttering. In adult populations, the focus often shifts to acquired conditions such as aphasia, dysarthria, cognitive-communication deficits following brain injury, and dysphagia. Regardless of the population, the goal is to maximize functional communication and improve quality of life.
Modern speech therapy integrates a variety of therapeutic approaches, from traditional drill-based articulation practice to naturalistic language intervention, augmentative and alternative communication (AAC) systems, and technology-assisted tools. SLPs practice in diverse settings including hospitals, rehabilitation centers, schools, private clinics, early intervention programs, and telepractice platforms. The profession is regulated through licensure and certification bodies such as the American Speech-Language-Hearing Association (ASHA), which sets standards for clinical competence, continuing education, and ethical practice. As research continues to advance understanding of the neural and developmental bases of communication, the field evolves with increasingly precise diagnostic tools and more effective, individualized treatment protocols.
One step at a time.
Difficulties producing individual speech sounds correctly, involving errors of substitution, omission, distortion, or addition that affect speech intelligibility.
Example: A child who consistently says 'wabbit' instead of 'rabbit' is demonstrating a substitution error where /r/ is replaced by /w/.
An acquired language disorder resulting from brain damage, typically stroke, that impairs the ability to produce or comprehend spoken and written language while leaving general intellect relatively intact.
Example: A stroke survivor with Broca's aphasia may understand questions well but respond with effortful, telegraphic speech such as 'walk... dog... yesterday' instead of a full sentence.
Systems and strategies that supplement or replace natural speech and writing for individuals with severe communication impairments, ranging from low-tech picture boards to high-tech speech-generating devices.
Example: A nonverbal child with autism uses a tablet-based AAC app to select icons representing words and phrases, which the device then speaks aloud.
Systematic sound pattern simplifications that developing children use to reduce the complexity of adult speech. They are considered disordered when they persist beyond the expected age of elimination.
Example: A three-year-old who says 'top' for 'stop' is using the phonological process of cluster reduction, which is typical at that age but would be a concern if it persisted past age five.
A swallowing disorder that can occur in any phase of the swallow (oral preparatory, oral transit, pharyngeal, or esophageal) and may lead to aspiration, malnutrition, or dehydration.
Example: An elderly patient who coughs and chokes when drinking thin liquids may be diagnosed with pharyngeal dysphagia and placed on thickened liquids to reduce aspiration risk.
Disruptions in the normal flow of speech, most commonly stuttering (characterized by repetitions, prolongations, and blocks) and cluttering (characterized by rapid or irregular speech rate with breakdowns in clarity).
Example: A person who stutters may say 'I w-w-w-want to go' with part-word repetitions, or experience a silent block where no sound comes out despite visible effort to speak.
A language delay indicates that a child is following the typical sequence of language development but at a slower rate, while a language disorder involves atypical patterns of language acquisition that may not resolve without intervention.
Example: A two-year-old with a language delay may have only 20 words but use them appropriately, whereas a child with a language disorder might have 50 words but combine them in unusual or non-functional ways.
A motor speech disorder in which the brain has difficulty planning and coordinating the precise movements needed for speech, leading to inconsistent errors and disrupted prosody despite adequate muscle strength.
Example: A child with CAS might say the word 'banana' differently each time they attempt it, producing 'nanaba,' 'bamama,' or 'danana' in successive trials.
More terms are available in the glossary.
Choose a different way to engage with this topic — no grading, just richer thinking.
Explore your way — choose one:
See how the key ideas connect. Nodes color in as you practice.
Walk through a solved problem step-by-step. Try predicting each step before revealing it.
This is guided practice, not just a quiz. Hints and pacing adjust in real time.
Small steps add up.
What you get while practicing:
The best way to know if you understand something: explain it in your own words.
More ways to strengthen what you just learned.