No abstract available
MeSH terms
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Age Factors
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Aggression*
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Attention
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Attitude
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Child Behavior*
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Child Development
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Child, Preschool*
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Female
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Frustration
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Humans
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Intelligence Tests
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Interpersonal Relations*
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Male
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Parents
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Play and Playthings
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Probability
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Schools, Nursery
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Sex Factors
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Social Behavior*
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Social Class
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Television*
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Visual Perception