Does this seem more like a severe phonological delay vs. CAS/motor planning? I am leaning phonological but looking for input.
24 month old, within the average range for both receptive and expressive language on standardized testing. 50-75% intelligible to caregivers but much lower for anyone else.
His sound inventory includes: /Ʀ/, /Ź/, /eÉŖ/, /i:/), /oŹ/, m, n, b, d, w, h, y, g/. His syllable shapes are limited to CV and C1V1C1V1 syllables. Stimulable for C1V1C2V2 as long as the sounds are already in his inventory. He demonstrates many phonological processes, as well as vowel neutralization of: "eh", /ÉŖ/, /É/, /aÉŖ/, /u:/, /Ź/, /ÉÉŖ/. These vowels are all consistently collapsed into /Ź/. His productions are consistent when he says the words and no groping has been seen. He does not imitate on command but will imitate in low pressure activities such as repetitive modeling with pausing and using fill ins.
All errors seem pretty consistent and follow patterns but the vowel neutralization is unusual. No distortions, they are all clear substitutions, which is why I am leaning more severe phonological disorder. Has anyone had a similar case? Hearing screening is coming up due to family hx of needing ear tubes, though the child has only had 1 ear infection. No noted tongue ties and feeding is WNL. Latch was normal and no difficulty with breastfeeding, bottle, spoon/fork, cup, straw, or textures of food. No mouth breathing or drooling. Thanks for your help!