Results: Accuracy across all samples was over 90% for all
sound classes except fricatives and increased for all sound
classes across time. Whole-word accuracy was high and
increased across time. With the exception of cluster
reduction, stopping, and final consonant deletion, the
frequency of occurrence for phonological patterns was less
than or equal to 5% at every time point. Sociolinguistic variables such as age of arrival, age of exposure, and age
were significantly related to phonological skills.