The Assessment of Phonological Processes-Revised (APP-R) is a measure of a child’s ability to produce patterns of articulation in single words and is designed for highly unintelligible children.   Phonological processes that occur at a high frequency (greater than 40%) significantly impact the overall ability to be understood.

Pattern Deviations                        Percentage of Occurrence

Syllable Reduction            

Prevocalic Singleton Omissions            

Postvocalic Singleton Omissions            

Consonant Sequence Reductions            

Stridency Deficiency            

Velar Deficiency            

Liquid /l/ Deficiency            

Liquid /r/ Deficiency            

Nasal Deficiency            

Glide Deficiency