- Class Time Scale
- Classroom Assessment Scoring System Infant
- Classroom Assessment Scoring System Toddler
- Clinical Evaluation of Language Fundamentals (CELF): Following Directions
- Clinical Evaluation of Language Fundamentals (CELF): Formulated Sentences
- Clinical Evaluation of Language Fundamentals (CELF): Linguistic Concepts
- Clinical Evaluation of Language Fundamentals (CELF): Pragmatics Activities Checklist
- Clinical Evaluation of Language Fundamentals (CELF): Pragmatics Profile
- Clinical Evaluation of Language Fundamentals (CELF): Reading Comprehension
- Clinical Evaluation of Language Fundamentals (CELF): Recalling Sentences
- Clinical Evaluation of Language Fundamentals (CELF): Semantic Relationships
- Clinical Evaluation of Language Fundamentals (CELF): Sentence Assembly
- Clinical Evaluation of Language Fundamentals (CELF): Sentence Comprehension
- Clinical Evaluation of Language Fundamentals (CELF): Structured Writing
- Clinical Evaluation of Language Fundamentals (CELF): Understanding Spoken Paragraphs
- Clinical Evaluation of Language Fundamentals (CELF): Word Classes
- Clinical Evaluation of Language Fundamentals (CELF): Word Definitions
- Clinical Evaluation of Language Fundamentals (CELF): Word Structure
- Clinical Evaluation of Language Fundamentals Fifth Edition (CELF-5)
- Clinical Evaluation of Language Fundamentals Fifth Edition (CELF-5): Metalinguistics
- Clinical Evaluation of Language Fundamentals Fifth Edition (CELF-5): Screening Test
- Clinical Evaluation of Language Fundamentals Fourth Edition (CELF-4)
- Clinical Evaluation of Language Fundamentals – 4th Ed (CELF): Sentence Structure Subtest
- Clinical Evaluations of Language Fundamentals (CELF) Spanish
- Clinical Evaluations of Language Fundamentals (CELF) Spanish: Formulacion Oraciones
- CNS Vital Signs Computerized Cognitive Battery
- Cognitive Abilities Test(TM)
- Cognitive Assessment of Young Children
- Cognitive Assessment System
- Cognitive Assessment System Second Edition
- Cognitrax
- College Survival and Success Scale
- Colorado Learning Disability Questionnaire
- Colorado Perceptual Speed Test
- Comprehensive Addiction and Psychological Evaluation 5 (CAAPE-5)
- Comprehensive Aphasia Test
- Comprehensive Reading Assessment Battery (CRAB)
- Comprehensive Receptive and Expressive Vocabulary Test Third Edition
- Comprehensive Test of Nonverbal Intelligence Second Edition
- Comprehensive Test of Phonological Processing (CTOPP): Blending Nonwords
- Comprehensive Test of Phonological Processing (CTOPP): Blending Words
- Comprehensive Test of Phonological Processing (CTOPP): Elision
- Comprehensive Test of Phonological Processing (CTOPP): Memory for Digits
- Comprehensive Test of Phonological Processing (CTOPP): Nonword Repetition
- Comprehensive Test of Phonological Processing (CTOPP): Phoneme Isolation
- Comprehensive Test of Phonological Processing (CTOPP): Rapid Color Naming
- Comprehensive Test of Phonological Processing (CTOPP): Rapid Digit Naming
- Comprehensive Test of Phonological Processing (CTOPP): Rapid Letter Naming
- Comprehensive Test of Phonological Processing (CTOPP): Rapid Object Naming
- Comprehensive Test of Phonological Processing (CTOPP): Segmenting Nonwords
