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| Bailey, Donald B., Jr. | 2 |
| Hatton, Deborah D. | 1 |
| Skinner, Martie | 1 |
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| Journal Articles | 2 |
| Reports - Research | 2 |
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Bailey, Donald B., Jr.; Hatton, Deborah D.; Skinner, Martie – American Journal on Mental Retardation, 1998
Findings from a prospective longitudinal study of 46 boys with fragile X syndrome (ages 24-72 months) found that, although children varied widely, overall development was significantly delayed to approximately half of the rate of typical children. At every age tested, motor and adaptive development was higher than communication and cognitive…
Descriptors: Adaptive Behavior (of Disabled), Child Development, Cognitive Development, Communication Skills
Peer reviewedBailey, Donald B., Jr.; And Others – Child Development, 1993
Examined children's developmental trajectories in five domains. Children were assigned to same- or mixed-age child care groups and assessed at 6-month intervals between approximately 32 and 49 months. Children in the two groups differed in their trajectories for communication, cognitive, and motor development but showed similar trajectories for…
Descriptors: Adjustment (to Environment), Child Development, Cognitive Development, Comparative Analysis
