Literacy and Reading Disorders: The SLP's Role on the Praxis

Literacy is squarely in the SLP scope of practice, and the Praxis 5331 tests it — phonological awareness hierarchies, the reading models, and the SLP's role on a school literacy team. Many candidates skip this content because their graduate program treated it lightly. Don't.

The Simple View of Reading

Reading comprehension = decoding × language comprehension. Because it's a product, a zero on either side yields zero comprehension. This model generates a clean differential:

• Dyslexia — poor decoding, intact language comprehension
• Specific comprehension deficit ("poor comprehender") — intact decoding, weak language comprehension
• Mixed reading disability — both impaired
• Typical reader — both intact

Scarborough's Reading Rope expands the same idea into word recognition strands (phonological awareness, decoding, sight recognition) and language comprehension strands (background knowledge, vocabulary, language structures, verbal reasoning, literacy knowledge).

Phonological awareness: the hierarchy to memorize

Easiest to hardest — items ask what comes next:

1. Rhyme recognition and production
2. Word and syllable segmentation
3. Onset-rime blending and segmentation
4. Phoneme isolation (initial → final → medial)
5. Phoneme blending
6. Phoneme segmentation
7. Phoneme deletion, addition, and substitution (most advanced)

Phonemic awareness is the phoneme-level subset of phonological awareness, and both are purely auditory — distinct from phonics, which links sounds to printed letters. Confusing those three terms is the single most common error on literacy items.

Dyslexia essentials

• A neurobiological, language-based disorder with a core deficit in phonological processing.
• Signs: slow, inaccurate word reading; poor spelling; labored decoding of nonsense words; strong listening comprehension relative to reading.
• Strongly heritable; commonly co-occurs with a history of speech sound or language disorder.
• Effective instruction is structured literacy: explicit, systematic, cumulative, multisensory (Orton-Gillingham lineage).
• Three-cueing / guess-from-picture strategies are not evidence-based and are a frequent distractor.

Assessment tasks the exam expects

• Nonword (pseudoword) reading — isolates decoding from sight vocabulary
• Rapid automatized naming (RAN) — predicts fluency
• Oral reading fluency — words correct per minute with prosody
• Phonological awareness batteries (CTOPP-2, PAT-2)
• Spelling analysis — reveals phoneme-grapheme knowledge
• Listening vs. reading comprehension comparison — locates the deficit on the Simple View grid

The SLP's role

ASHA defines SLP roles across prevention, identification, assessment, intervention, and collaboration for reading and writing. In schools that usually means:

• Delivering phonological awareness and morphological awareness instruction
• Building oral language as the foundation for comprehension
• Consulting with teachers and reading specialists in MTSS/RTI tiers
• Writing literacy-linked IEP goals when reading deficits stem from a language disorder — see IEP basics

Written language

Writing is tested too. Know the difference between transcription (handwriting, spelling) and composition (planning, translating, revising), and recognize evidence-based supports: graphic organizers, sentence combining, self-regulated strategy development (SRSD), and explicit morphology instruction.

Quick exam rules

• Phonological awareness is heard; phonics is seen.
• Poor comprehension with fine decoding → target vocabulary, syntax, background knowledge — not more phonics.
• Late-emerging comprehension problems often trace back to a preschool language disorder.
• Prefer explicit, systematic instruction over incidental exposure.

Reinforce this with the literacy question set, then take a timed full-length practice test.