Foundations and Professional Practice
What this domain tests
This domain covers the professional scaffolding around clinical work: normal anatomy and physiology of speech, language, and hearing (respiratory, phonatory, resonatory, and articulatory systems; outer, middle, and inner ear; central auditory and motor pathways); speech science (frequency, intensity, waveform and spectrogram reading); linguistics and psycholinguistics (phonology, morphology, syntax, semantics, pragmatics, and models of language development and processing); and research literacy - study design, levels of evidence, reliability and validity, and framing a clinical question with PICO (Population, Intervention, Comparison, Outcome).
Law, ethics, and scope
Know IDEA Part B (school-age, IEP, eligibility categories, adverse educational impact), IDEA Part C (infants and toddlers, IFSP, natural environments), Section 504 (accommodations for a disability that substantially limits a major life activity; no specialized instruction required), ADA, FERPA (education records - schools generally fall under FERPA, not HIPAA), and HIPAA (health-care settings). The ASHA Code of Ethics has four aspirational Principles and a longer list of enforceable Rules; state licensure or employer policy may be stricter than ASHA but never looser. Scope of practice, certification maintenance, supervision of assistants and student clinicians, and interprofessional practice appear frequently.
Traps
Items blur screening and evaluation (IDEA requires consent for a full evaluation, not for a general screening), or assume a medical diagnosis automatically creates school eligibility. Another trap is treating the Code of Ethics as a statute rather than a professional standard - or choosing a passive option when a colleague is practicing unethically, when the Code obliges you to act.
Rule of thumb
When rules seem to collide, ask who regulates this setting? School questions resolve to IDEA/504/FERPA; clinic or medical questions to HIPAA, Medicare, and Medicaid. Then apply the Code: Principles first, Rules second, and document your reasoning.