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Showing 1 to 15 of 16 results Save | Export
Michelle León; Karla N. Washington; Victoria S. McKenna; Kathryn Crowe; Kristina Fritz; Suzanne Boyce – Journal of Speech, Language, and Hearing Research, 2023
Purpose: This study examined the speech acoustic characteristics of Jamaican Creole (JC) and English in bilingual preschoolers and adults using acoustic duration measures. The aims were to determine if, for JC and English, (a) child and adult acoustic duration characteristics differ, (b) differences occur in preschoolers' duration patterns based…
Descriptors: Creoles, Foreign Countries, Acoustics, Speech Communication
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Steventon Roberts, Kathryn J.; Smith, Colette; Toska, Elona; Cluver, Lucie; Wittesaele, Camille; Langwenya, Nontokozo; Shenderovich, Yulia; Saal, Wylene; Jochim, Janina; Chen-Charles, Jenny; Marlow, Marguerite; Sherr, Lorraine – Infant and Child Development, 2023
This study explores the cognitive development of children born to adolescent mothers within South Africa compared to existing reference data, and explores development by child age bands to examine relative levels of development. Cross-sectional analyses present data from 954 adolescents (10-19 years) and their first-born children (0-68 months).…
Descriptors: Cognitive Development, Early Parenthood, Adolescents, Mothers
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Beseler, Bradley; Williams, Kathleen; Plumb, Mandy S. – Journal of Motor Learning and Development, 2021
Background: Roberton's movement components are used to assess fundamental motor skills as segmental developmental sequences. In 1991, Haywood, Williams and VanSant determined that original developmental sequences proposed for the backswing levels of the overarm throw did not encompass all ages. Their study of older throwers identified two new…
Descriptors: Psychomotor Skills, Motion, Motor Development, Physical Activities
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Hoyer, Roxane S.; Elshafei, Hesham; Hemmerlin, Julie; Bouet, Romain; Bidet-Caulet, Aurélie – Child Development, 2021
Distractibility is the propensity to behaviorally react to irrelevant information. Although children are more distractible the younger they are, the precise contribution of attentional and motor components to distractibility and their developmental trajectories have not been characterized yet. We used a new behavioral paradigm to identify the…
Descriptors: Child Development, Psychomotor Skills, Motor Development, Attention Control
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Wu, Jiamin; Chan, John S. Y.; Yan, Jin H. – Developmental Science, 2019
We examined the developmental differences in motor control and learning of a two-segment movement. One hundred and five participants (53 female) were divided into three age groups (7-8 years, 9-10 years and 19-27 years). They performed a two-segment movement task in four conditions (full vision, fully disturbed vision, disturbed vision in the…
Descriptors: Motor Development, Elementary School Students, Task Analysis, Accuracy
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Tillmann, J.; Ashwood, K.; Absoud, M.; Bölte, S.; Bonnet-Brilhault, F.; Buitelaar, J. K.; Calderoni, S.; Calvo, R.; Canal-Bedia, R.; Canitano, R.; De Bildt, A.; Gomot, M.; Hoekstra, P. J.; Kaale, A.; McConachie, H.; Murphy, D. G.; Narzisi, A.; Oosterling, I.; Pejovic-Milovancevic, M.; Persico, A. M.; Puig, O.; Roeyers, H.; Rommelse, N.; Sacco, R.; Scandurra, V.; Stanfield, A. C.; Zander, E.; Charman, T. – Journal of Autism and Developmental Disorders, 2018
Research on sex-related differences in Autism Spectrum Disorder (ASD) has been impeded by small samples. We pooled 28 datasets from 18 sites across nine European countries to examine sex differences in the ASD phenotype on the ADI-R (376 females, 1763 males) and ADOS (233 females, 1187 males). On the ADI-R, early childhood restricted and…
Descriptors: Gender Differences, Age Differences, Diagnostic Tests, Observation
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Knowland, Victoria C. P.; Thomas, Michael S. C. – International Review of Education, 2014
The acquisition of new skills in adulthood can positively affect an individual's quality of life, including their earning potential. In some cases, such as the learning of literacy in developing countries, it can provide an avenue to escape from poverty. In developed countries, job retraining in adulthood contributes to the flexibility of…
Descriptors: Adults, Neurosciences, Skill Development, Scientific Research
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Rothenberg-Cunningham, Alek; Newell, Karl M. – Research Quarterly for Exercise and Sport, 2013
Purpose: This study investigated the age-related speed--accuracy strategies of children, adolescents, and adults in performing a rapid striking task that allowed the self-selection of the interception position in a virtual, two-dimensional environment. Method: The moving target had curvilinear trajectories that were determined by combinations of…
Descriptors: Children, Adolescents, Adults, Age Differences
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Clark, Jane E.; And Others – Developmental Psychology, 1989
Studied effects of changing internal and external constraints on the development of jumping in children of three, five, seven, and nine years, and adults. Results revealed no differences in the pattern of coordination for jumping. Differences were found in the position and magnitude variables. (RJC)
Descriptors: Adults, Age Differences, Children, Motor Development
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Olivier, Isabelle; Audiffren, Michel; Ripoll, Hubert – Journal of Experimental Child Psychology, 1998
Investigated mechanisms underlying age-related differences in information processing for production of motor responses, especially development of feedforward mechanisms. Studied 6-, 8-, 10-, and 22-year olds under two conditions: without advance information on movement to be made, and with advanced information on movement. Found beyond 6 years of…
Descriptors: Adults, Age Differences, Children, Cognitive Processes
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Lazarus, Jo-Anne C.; And Others – Journal of Experimental Child Psychology, 1995
Isometric pinch force regulation was investigated in children and adults using a visuo-motor tracking paradigm. Younger children aged 5-7 years performed significantly worse than older children aged 9-11 years and adults in terms of an overall error score as well as a correlation score, which is believed to reflect the ability to predict the…
Descriptors: Adults, Age Differences, Children, Motor Development
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Ashmead, Daniel H.; And Others – Child Development, 1993
Fourteen five- and nine-month-old infants were presented with illuminated toys to reach for in total darkness. In half the trials, a luminescent marker was attached to the reaching hand. The nine-month olds reached just as accurately with or without the hand marker, whereas five-month olds were generally inaccurate and unaffected by the marker.…
Descriptors: Adults, Age Differences, Eye Hand Coordination, Infants
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Clark, Jane E.; Phillips, Sally J. – Child Development, 1993
Using a dynamic systems approach, examined the development of intralimb coordination over the first year of independent walking in three infants. Found that, in the first month of walking, there was much instability between the thigh and shank of the leg, but after three months infants appeared to have found an adult-like stable coordinative…
Descriptors: Adults, Age Differences, Developmental Stages, Infants
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Badan, Maryse; Hauert, Claude-Alain; Mounoud, Pierre – Journal of Experimental Child Psychology, 2000
Four experiments investigated the development of visuomotor control in sequential pointing in tasks varying in difficulty among 6- to 10-year-olds and adults. Comparisons across difficulty levels and ages suggest that motor development is not a uniform fine-tuning of stable strategies. Findings raise argument for stage characteristics of…
Descriptors: Adults, Age Differences, Children, Comparative Analysis
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McCarty, Michael E.; Ashmead, Daniel H. – Developmental Psychology, 1999
Evaluated role of visual input during reaching and grasping. Found that both infants and adults completed a reach and grasp to a darkened object but used vision when object remained visible. Infants contacted the object more often when it remained visible, although with longer durations and more movement units. Adults reached faster and more…
Descriptors: Adults, Age Differences, Comparative Analysis, Eye Hand Coordination
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