Praxis 5331 Bilingual Assessment: Difference vs. Disorder

Bilingual and culturally responsive assessment is one of the highest yield topics on the Praxis 5331 relative to how little grad programs cover it. Expect several items testing your ability to distinguish language difference from language disorder — and to know when the standardized English test is the wrong tool.

The core distinction: difference vs. disorder

• Language difference: Patterns that reflect the rules of a language, dialect, or the process of second-language acquisition. Not a disorder. Not eligible for services.
• Language disorder: Difficulty in both (or all) languages the child speaks, evident across contexts, and not explained by exposure or dialect.

Rule of thumb ETS wants: a true disorder is present in every language the child speaks. Difficulty in English only is almost always a difference, not a disorder.

Why standardized English tests over-identify bilingual children

• Normed on monolingual English speakers.
• Vocabulary tests undercount cross-linguistic vocabulary (a child may know "apple" in Spanish but not English).
• Grammar items penalize L2 acquisition patterns.
• Cultural bias in item content (unfamiliar objects, activities).

Using a standardized English test alone with a bilingual child violates the ASHA Code of Ethics (Principle I) and IDEA (assessment "in the child's native language or other mode of communication").

What to do instead — the recommended approach

1. Case history in both languages. Age of L2 onset, quantity/quality of exposure, family language use.
2. Assessment in both languages. Use a bilingual SLP or a trained interpreter.
3. Dynamic assessment (test–teach–retest). Poor learners after teaching = disorder signal; rapid learners = difference.
4. Language sampling in naturalistic contexts (with a caregiver, in play).
5. Criterion-referenced or processing-based measures (nonword repetition, sentence repetition) that reduce language-specific vocabulary demands.
6. Report information consistent with the child's language experience — not just standardized scores.

Common patterns of typical L2 acquisition (NOT a disorder)

• Silent period after first exposure to L2 (up to 6 months).
• Code-switching / code-mixing between languages.
• Grammatical transfer from L1 to L2 (e.g., Spanish adjective-noun order in English).
• L1 attrition when L2 becomes dominant.
• BICS before CALP: social English in ~2 years, academic English takes 5–7.

Using an interpreter — the ETS-preferred protocol

• Brief the interpreter before the session on the goal, key terminology, and confidentiality.
• Speak directly to the family (not the interpreter); use short utterances.
• Avoid family members as interpreters — especially children. Dual-relationship, confidentiality, and accuracy problems.
• Debrief the interpreter afterward on any cultural or linguistic nuance.

Dialectal variation — not a disorder

African American English (AAE), Southern American English, Chicano English, and other dialects have systematic rules. The SLP's role is:

• Recognize dialect features as rule-governed variation.
• Use contrastive analysis to separate dialect from possible disorder.
• Provide code-switching support only if the family/individual requests it — it is elective, not remedial.
• Choose dialect-fair or dialect-specific assessment tools.

Sample Praxis-style item

A 5-year-old Spanish-English bilingual child scores below the 5th percentile on the CELF-5 English core language score. His parents report he communicates well in Spanish at home and mixes both languages with siblings. What is the most appropriate next step?

Answer: Assess the child in Spanish with a bilingual SLP or trained interpreter, use dynamic assessment, and gather language samples in both languages before making an eligibility decision. Do not qualify based on the English score alone. Do not recommend "English-only at home."

ETS traps to avoid

• "Recommend English immersion" — wrong. Home language should be maintained.
• "Rely on the standardized English score" — wrong. Insufficient by itself.
• "Use the child's sibling as interpreter" — wrong. Ethics violation.
• "Wait a year for more English exposure" — wrong. Delay hurts the child if it's actually a disorder.