Diagnostic Evaluation of Articulation and Phonology (DEAP) evaluates articulation and phonological process using a Diagnostic Screen, a diagnostic Articulation Assessment, a diagnostic Phonology Assessment (with a phonological analysis), and an Oral Motor Screen.

The Dyslexia Early Screening Test Second Edition (DEST-2) contains screening tests of attainment and ability that evaluate a range of skills and profiles strengths and weaknesses of a child.

The Dyslexia Screening Test-Junior is designed for early identification of students at risk for reading failure. The DST-J replaces the best selling DST and reflects changes in theory and practice, with additional subtests, validation studies, and case histories.

Dyslexia Screening Test-Secondary provides a profile of strengths and weaknesses to guide the development of in-school support for students.

Evidence-Based Practice Briefs (EBP Briefs) is a journal meant for busy clinicians who need to evaluate the best evidence and make the best decisions in the shortest possible time.

Brief and easy to administer, the Expressive Vocabulary Test Second Edition (EVT-2) is designed to coordinate with the PPVT-4.

Expressive Vocabulary Test Third Edition (EVT-3) is a norm-referenced and individually administered test of expressive vocabulary and word retrieval based on words in Standard American English.

Assess early literacy skills more easily and effectively with children as young as three with Get Ready to Read!™ Revised.

Goldman-Fristoe Test of Articulation 2 (GFTA-2) is the most popular articulation test available for individuals from early childhood to adult.

The Goldman-Fristoe Test of Articulation 3 (GFTA-3) provides accurate scores for making diagnostic and placement decisions.

The Goldman-Fristoe Test of Articulation Third Edition, Spanish (GFTA™-3 Spanish) provides accurate results for making diagnostic and placement decisions.

Gray Oral Reading Test Fifth Edition (GORT-5) is one of the most widely used measures of oral reading fluency and comprehension in the United States.

The Kaufman Survey of Early Academic and Language Skills (K-SEALS) is a valuable tool for testing school readiness, identifying gifted children, evaluating program effectiveness, and researching children’s early development.

The Khan-Lewis Phonological Analysis Second Edition (KLPA-2) works with Goldman-Fristoe 2 to give more comprehensive diagnoses of articulation and use of phonological processes.

The new Khan-Lewis Phonological Analysis | Third Edition (KLPA-3 ) works with Goldman-Fristoe 3 to help determine if use of phonological processes are contributing to an individual's speech sound disorder.

Mullen Scales of Early Learning is a developmentally integrated system that assesses language, motor, and perceptual abilities, measures cognitive ability and motor development quickly and reliably

Oral Passage Understanding Scale (OPUS™) assesses listening comprehension in children and young people.

OWLS-II offers an integrated, global approach to language assessment with a new Reading Comprehension Scale, updated norms, new items, a parallel form, improved scoring guidelines, and full-color stimulus materials.

Peabody Picture Vocabulary Test™ Fifth Edition (PPVT™-5) is a norm-referenced and individually administered measure of receptive vocabulary based on words in Standard American English.

The Peabody Picture Vocabulary Test Fourth Edition (PPVT™-4) is the outstanding vocabulary assessment unsurpassed for nearly a half century.

Preschool Language Scale, Fourth Edition Spanish (PLS™-4 Spanish) is an interactive language assessment for monolingual and bilingual Spanish speaking children.

Preschool Language Scales, Fourth Edition (PLS™-4) is an interactive assessment of developmental language skills.

PLS™-5 Preschool Language Scales Fifth Edition offers a comprehensive developmental language assessment with items that range from pre-verbal, interaction-based skills to emerging language to early literacy.

Preschool Language Scales | Fifth Edition Spanish is an interactive assessment that captures bilingual children’s language skills in a single score.

Preschool Language Scales-5 Screening Test PLS™-5 Screening Test screens a broad spectrum of speech and language skills for children birth through age 7.