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Lamb, Michael E.; Chuang, Susan S.; Wessels, Holger; Broberg, Anders G.; Hwang, Carl Philip – Child Development, 2002
This longitudinal study investigated the validity of the Five Factor Model of personality with Swedish children ages 2 to 15 years. Findings of item analyses showed consistently reliable irritability, conscientiousness, and positive activity factors, while internal reliability of other factors increased over time. Found that irritability and…
Descriptors: Adolescents, Children, Foreign Countries, Longitudinal Studies