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Sequential progressions in a theory-of-mind scale: longitudinal perspectives.
Henry M Wellman1, Fuxi Fang, Candida C Peterson
1Center for Human Growth & Development,University of Michigan, 300 North Ingalls, Ann Arbor, MI 48109, USA. hmw@umich.edu
Child Development
|March 25, 2011
Summary
This study confirms that theory-of-mind development sequences observed in groups also apply to individual children over time. These findings hold true across cultures and for children with developmental delays, validating the theory-of-mind scale.
Area of Science:
- Developmental Psychology
- Cognitive Science
- Child Development
Background:
- Cross-sectional studies suggest distinct sequences in theory-of-mind development.
- Longitudinal validation is crucial to confirm developmental progressions in individual children.
- Cultural and clinical variations may influence theory-of-mind trajectories.
Purpose of the Study:
- To determine if theory-of-mind development sequences observed in cross-sectional data are replicated in longitudinal assessments.
- To examine the consistency of these developmental sequences across diverse populations, including different cultures and children with delays.
- To assess the relationship between scale distances and longitudinal age differences in theory-of-mind understanding.
Main Methods:
- Longitudinal assessment involving consecutive retestings of 92 preschoolers.
- Inclusion of diverse groups: U.S. preschoolers (n=30), Chinese preschoolers (n=31), and deaf children (n=31).
- Utilized a theory-of-mind scale to track developmental progressions.
Main Results:
- Longitudinal data confirmed that theory-of-mind progressions observed in cross-sectional scaling data were also present in individual children's longitudinal development.
- The observed developmental sequences were consistent across cultural groups (U.S. and China) and in deaf children with substantial developmental delays.
- A positive correlation was found between scale distances and longitudinal age differences, indicating that larger gaps on the scale represent greater age-related advancements.
Conclusions:
- The findings validate the use of the theory-of-mind scale for tracking developmental trajectories in diverse populations.
- Developmental sequences in theory-of-mind are robust and appear consistent across cultures and in children with significant developmental delays.
- Longitudinal assessment confirms the generalizability of cross-sectional findings in theory-of-mind development.
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