The Comprehensive Diagnostic Evaluation includes both formal and informal assessments. Areas assessed include: Oral Language (i.e. semantics, phonology, syntax, morphology, pragmatics) as well as Written Language (i.e. semantics, phonology, syntax, morphology, pragmatics). Specific reading assessments will be addressed which will include the assessment of rate, accuracy, fluency and comprehension of reading.

The Comprehensive Diagnostic Battery may include but is not limited to the following assessment tools:

  • Standardized Testing
  • Peabody Picture Vocabulary Test (PPVT), a single word receptive vocabulary test.
  • Expressive Vocabulary Test (EVT), a single word expressive vocabulary test.

Clinical Evaluation of Language Fundamentals (CELF-4), a receptive and expressive language skills test that explores the foundations of language form and content: word meaning (semantics), word and sentence structure (morphology and syntax), and recall of spoken language (auditory memory).

  • Test of Language Competence - Expanded Edition (TLC Expanded), a metalinguistic test of higher-level language functions.
  • Gray Oral Reading Test (GORT), an assessment of oral reading and comprehension.

Comprehensive Test of Phonological Processing (CTOPP), an assessment of phonological processing skills. The CTOPP has been developed to reflect current research into the causes of reading disorders. It has been found that reading is based on knowledge of the sounds in words, i.e., the phonological system. Those students who can "play" with sounds in words are more ready for the task of decoding sounds in words (reading) and encoding them (spelling).

  • Illinois Test of Psycholinguistic Abilities (ITPA-3), an assessment of general and written language.
  • Test of Written Language (TOWL), an assessment of written language.
  • Test of Early Reading Abilities (TERA), an assessment of early writing ability.
  • Test of Written Spelling (TWS), an assessment to identify deficit areas of spelling.

Informal Data Gathering will include

  • Case History
  • Parent Interview
  • Oral Language Sample and analysis
  • Oral Narrative Retell and analysis
  • Written Narrative Retell and analyses
  • Informal Observations
  • Parent Questionnaire
  • Educator Questionnaire