CASL-2: A Clinical Assessment Overview
A high-level overview of the CASL-2 (Comprehensive Assessment of Spoken Language, Second Edition) — what it measures, structure, and clinical use.
The CASL-2 assessment is an individually administered, norm-referenced test of spoken language. Its full name is the Comprehensive Assessment of Spoken Language, Second Edition. A speech-language pathologist gives it one-on-one across a wide age range, and the results identify language disorder and describe strengths and weaknesses.
What it measures
It measures spoken language in both directions: what a person understands, and what they can produce. Semantics and syntax are in there, along with morphology and pragmatics (the social use of language). Receptive and expressive skills both get measured.
Here's our take: the profile is the point. Two clients can post the same overall score and still need completely different therapy.
Structure and use
A qualified professional administers it one-on-one, and the norm-referenced scoring yields standard scores and percentile ranks plus age equivalents. The age range runs from childhood through adolescence and into young adulthood. When you don't need the full battery, the core tests support efficient administration. Complex cases get the full assessment, which means a broader profile (same instrument, more of it). Results show whether a language disorder is present and what the difficulty looks like, so goals attach to findings rather than hunches.
Who uses it and why
Speech-language pathologists are the main users, and diagnostic evaluation of spoken language disorder leads the list. They also describe a client's language profile for treatment planning. Re-evaluation over time tracks progress. Eligibility decisions in school and clinical settings lean on scores like these.
Honestly, the fine print isn't optional: valid results require following the published procedures, and interpretation lives in the full context of the client's history and other data.
Documentation
Record standardized assessment results with both the scores and the clinical interpretation. Tie findings to measurable goals with the treatment plan goal builder, and document sessions consistently with SOAP or DAP notes. We built these tools because "went well today" isn't a measurable outcome.