This comprehensive reference chart includes phonological error patterns as reported by the following references:
Bowen, C. (2011). Table 3: Elimination of Phonological Processes.
McLeod, S., & Baker, E. (2017). Types of SSD in Children. In Children’s Speech: An Evidence-Based Approach to Assessment and Intervention.
Peña-Brooks, A., & Hegde, M. N. (2015). Assessment and Treatment of Speech Sound Disorders in Children: A Dual-Level Text. Austin, TX: PRO-ED.
This chart is detailed and includes both common and uncommon phonological error patterns, including reported age of elimination, if provided by the sources above (not all patterns have reported ages of elimination). This chart also includes notes and reminders to help the clinician when using this chart clinically, such as during an assessment.
The chart is two pages (or a single page, front and back) and includes error patterns in the following categories: Syllable Structure, Assimilation, and Substitution.
