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Aksan, Nazan; And Others – Developmental Psychology, 1999
Examined the number and nature of temperamental types in 488 children, age 3 years 6 months. Configural-frequency-analysis methods showed clear support for two temperament types: controlled-nonexpressive and noncontrolled-expressive. These types showed meaningful differences against external criteria related to a wide range of problem behaviors.…
Descriptors: Behavior Problems, Child Behavior, Longitudinal Studies, Personality Development