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Denham, Susanne A.; And Others – Child Study Journal, 1995
Investigated developmental change and patterns of individual differences in dimensions of infant temperament. Rothbart Infant Behavior Questionnaire (IBQ) was completed for subjects 5 times between 6 weeks and 30 months of age. Interpretable age changes were found for emotional reactivity, but not for the index of regulation (IBQ soothability).…
Descriptors: Age Differences, Child Development, Developmental Stages, Emotional Response
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Stimson, Carol A.; And Others – Child Study Journal, 1997
In this longitudinal study, 60 mothers rated their toddler's personality traits concerning social relations and exploration of the physical and social world. Data showed that mothers of toddlers from older cohorts were more likely to have stable and consistent, but not more negative, perceptions of their child's personality over six months than…
Descriptors: Age Differences, Cohort Analysis, Individual Development, Longitudinal Studies
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Rosser, Rosemary A.; And Others – Child Study Journal, 1993
Tested children's ability to compute perspectives from locational and structural descriptions of scenes. Children from 4 to 10 years of age were given perspective-taking problems that involved abstract multicomponent scenes; responses entailed the reconstruction of alternate views. Four-year olds were unsuccessful; 10-year olds were successful…
Descriptors: Age Differences, Cognitive Development, Elementary Education, Elementary School Students
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Lu, Shu-ping – Child Study Journal, 1990
Used the Twenty Statements Test to investigate the development of self-concept of Chinese students in grades 4, 6, 8, 10, 12, 14. As students' age increased, their self-concept became more abstract. Comparisons between Chinese and American students indicated differences in the content and speed of the concrete-abstract development of self-concept.…
Descriptors: Age Differences, College Students, Cross Cultural Studies, Elementary School Students
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Naparstek, Nathan – Child Study Journal, 1990
Used the rational facet approach to examine the relationship between age and perceptions of subconstructs of prosocial behavior on the part of second, fourth, sixth, and eighth graders and adult teachers. Differentiation of subconstructs of prosocial behavior increased with age. (Author/BB)
Descriptors: Affective Behavior, Age Differences, Elementary Education, Elementary School Students
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Driscoll, Amy; And Others – Child Study Journal, 1990
A total of 318 students in preschool, kindergarten and first grade used the Primary Grade Pupil Report to report on their teachers. Preschool students' reports on teachers were more negative than those of kindergarten and first grade students. Factor analysis identified different significant factors for the two groups. (Author/BB)
Descriptors: Age Differences, Cognitive Development, Comparative Analysis, Grade 1