DEAP Inconsistency Forms

The DEAP Inconsistency Assessment Record Forms – Pack of 25 are standardized scoring sheets used as part of the Diagnostic Evaluation of Articulation and Phonology (DEAP). This subtest helps differentiate inconsistent phonological disorder from other speech sound difficulties by having children name the same 25 picture stimuli across three trials and calculating the percentage of inconsistent productions.

Benefits

Differential Diagnosis of Speech Disorders
Enables clinicians to accurately distinguish inconsistent phonological disorder (≥ 40% variability) from consistent disorders, articulation issues, or childhood apraxia of speech .

Quick Scoring & Clear Norms
Includes structured response tables and scoring prompts that streamline data entry and interpretation versus established DEAP norms .

Supports Targeted Intervention Planning
Identifies inconsistent speech patterns—key to deciding on core vocabulary therapy vs. phonological contrast approaches.

Fits Within the Full DEAP Protocol
Complements articulation, phonology, oral-motor, and diagnostic screen subtests to build a comprehensive speech profile .

Key Features

Age Range
Appropriate for children whose speech development needs differential analysis, commonly ages 3–7+, as part of DEAP .

Subtest Protocol
Child names 25 pictures in three separate trials during one assessment session; inconsistency percentage calculated token-to-token.

Format & Quantity
Pack of 25 scoring booklets, enabling clinician notation of all three trials for each item and automated calculation of inconsistency scores.

Qualification Level
Requires Qualification Level B—appropriate for certified speech-language pathologists, SLTs, and other trained professionals