CASL: Comprehensive Assessment of Spoken Language (11951) 


Price: $474.00

Ages: 3-0 through 21-11
Administration: Individual
Testing Time: 30 to 45 minutes for the core battery

The Comprehensive Assessment of Spoken Language (CASL) is an individually administered, research-based, theory-driven oral language assessment battery for ages 3 through 21.

Fifteen tests measure language processing skills--comprehension, expression, and retrieval--in four language structure categories: Lexical/Semantic, Syntactic, Supralinguistic, and Pragmatic.


  • Provides a precise picture of problems with language processing skills and structural knowledge
  • Records growth from preschool through the postsecondary years
  • Uses age-based norms identify language disorders and impairment as outlined by IDEA
  • Shows high internal consistency and test-retest reliabilities for tests, composites, and indexes

Only a verbal or nonverbal (pointing) response is required. Reading or writing ability is not needed to respond to test items. The CASL battery is ideal for measuring delayed language, oral language disorders, dyslexia, and aphasia.

The CASL is flexible. Administer only the tests you need for a single subject. For example, an average five-year-old might be given four core tests, plus one or two supplementary tests, if warranted. Core tests measure the most representative aspects of each language category for each of the six age bands. Supplementary tests provide additional diagnostic information to yield assessment data for quantitative (profile) and qualitative (clinical) analyses. Assess comprehension, expression, and retrieval in four oral language categories:

  • Lexical/Semantic Tests: Lexical/Semantic--knowledge and use of words and word combinations. Tests include: Basic Concepts, Antonyms, Synonyms, Sentence Completion, and Idiomatic Language
  • Syntactic Tests: knowledge and use of grammar (morphology and syntax). Tests include: Syntax Construction, Paragraph Comprehension, Grammatical Morphemes, Sentence Comprehension, and Grammaticality Judgement
  • Supralinguistic Tests: Supralinguistic--comprehension of complex language whose meaning is not directly available from lexical or grammatical information. Tests include: Nonliteral Language, Meaning from Context, Inference, and Ambiguous Sentences
  • Pragmatic Test: awareness of appropriate language in a situational context and the ability to modify this language as necessary

Descriptive Analysis Worksheets are available for several CASL tests, enabling you to target specific skill areas within these categories for intervention. Three self-standing Test Books are tabbed for quick administration and easy reference. Key test administration principles are printed on the first few pages of each. Two Record Forms, one for ages 3 through 6, the other for ages 7 through 21, provide space for a profile analysis, item responses, scores, and behavioral observations.

Age-based and grade-based standard scores (M = 100, SD = 15), grade and test-age equivalents, percentiles, normal curve equivalents (NCEs), and stanines are provided. Age-based norms can be used in learning disabilities assessments to meet the requirements of P.L. 94-142, which has been incorporated into the Individuals with Disabilities Education Act (IDEA, P.L. 101-476).

COMPLETE CASL KIT INCLUDES: Examiner's Manual, Three Test Books, 12 each of Record Form 1, 12 each of Record Form 2, and Norms Book, all in a sturdy storage box. (1999)