Phonological Processing is the ability to identify and manipulate the individual sounds in words. It is made up of Phonological Awareness (playing with larger units of sound) and Phonemic Awareness (playing with individual sounds). It is a critical skill that underlies a person's ability to decode. A student has to be able to play with sounds in order to be able to associate sound with symbol (phonics). Difficulty with Phonological Processing makes reading laborious for most and impossible for some. There are many layers and skills involved.
These skills tend to be sequential in nature…meaning that one skill may be dependent on success with another. A good reading interventionist or educational therapist should be skilled at addressing all levels of phonological processing.
PAST (Phonological Awareness Skills Test) - comprehensive with ages listed when the skill should be mastered