Associations among pragmatic functions, linguistic stress, and natural phonological processes in speech-delayed children.
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Child↗
Biomedical subjects
T F Campbell
Publications and source records attributed to T F Campbell.
Automatization of correct production at two levels of articulatory acquisition.
This study investigated the assumption that children who are in the process of acquiring correct production of a misarticulated phoneme are also in the process of developing automatization of correct production. Using the McDonald Deep Test of Articulation, children's articulation was tested under two conditions: Condition 1 without masking and Condition 2 with 85 dB SLP of competing speech masking. Children were classified into one of two levels of articulatory acquisition according to their performance during Condition 1. Children scoring below 80% correct were classsified as demonstrating low acquisition. Children scoring above 80% correct were classified as demonstrating high acquisition. Only children with /s/ or /r/ misarticulations were studied. Results indicated that the correct articulation of children demonstrating low acquisition was significantly more affected by the auditory masking than the correct articulation of those children demonstrating higher levels of acquisition. There was no significant difference in the performance of the children with the /s/ or /r/ misarticulations. The results support the concept that articulatory acquisition and automatization of correct articulation relate in a predictable manner.
Age Factors↗
Measurement properties of the MacArthur communicative development inventories at ages one and two years.
In a prospective study of child development in relation to early-life otitis media, we administered the MacArthur Communicative Development Inventories (CDI) to a large (N = 2,156), sociodemographically diverse sample of 1- and 2-year-old children. As a prerequisite for interpreting the CDI scores, we studied selected measurement properties of the inventories. Scores on the CDI/Words and Gestures (CDI-WG), designed for children 8 to 16 months old, and on the CDI/Words and Sentences (CDI-WS), designed for children 16 to 30 months old, increased significantly with months of age. On several scales of both CDI-WG and CDI-WS, standard deviations approximated or exceeded mean values, reflecting wide variability in results. Statistically significant differences in mean scores were found according to race, maternal education, and health insurance status as an indirect measure of income, but the directionality of differences was not consistent across inventories or across scales of the CDI-WS. Correlations between CDI-WG and CDI-WS ranged from .18 to .39. Our findings suggest that the CDI reflects the progress of language development within the age range 10 to 27 months. However, researchers and clinicians should exercise caution in using results of the CDI to identify individual children at risk for language deficits, to compare groups of children with different sociodemographic profiles, or to evaluate the effects of interventions.
Child Development↗