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1) Delay in acquisition of phonological skills, including errors similar to those of younger children
2)Tendency to vocalize less
3)Problems with early speech sounds affecting intelligibility
4)Difficulty learning the speech sound system of language, resulting in poor repetition of single and multisyllabic nonwords
5)Limited phonological awareness (e.g., rhyming, sound/syllable deleting, segmentation, and blending).
What are indicators of phonological delay's or disorders