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Mihee An; Emily C. Marcinowski; Lin-Ya Hsu; Jaclynn Stankus; Karl L. Jancart; Michele A. Lobo; Stacey C. Dusing; Sarah W. McCoy; James A. Bovaird; Sandra Willett; Regina T. Harbourne – Grantee Submission, 2022
Purpose: This study examines object permanence development in infants with motor delays (MD) compared with infants with typical development (TD) and in relation to sitting skill. Methods: Fifty-six infants with MD (mean age = 10 months) and 36 with TD (mean age = 5.7 months) were assessed at baseline and then at 1.5, 3, and 6 months postbaseline.…
Descriptors: Object Permanence, Psychomotor Skills, Skill Development, Developmental Delays
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Nip, Ignatius S. B.; Green, Jordan R. – Child Development, 2013
Age-related increases of speaking rate are not fully understood, but have been attributed to gains in biologic factors and learned skills that support speech production. This study investigated developmental changes in speaking rate and articulatory kinematics of participants aged 4 ("N" = 7), 7 ("N" = 10), 10…
Descriptors: Language Processing, Cognitive Processes, Age Differences, Articulation (Speech)