| A) | Gender constancy develops in concert with conservation at around six to seven years of age.
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| B) | Parenting style is related to children's socioemotional development.
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| C) | Play is an excellent setting for cognitive development.
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| D) | The acquisition of the understanding of some emotions does not go from a complete lack of comprehension to full knowledge; rather, the path is gradual.
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| E) | Children think in two distinctly different ways about morality, depending on their developmental maturity.
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| F) | The crisis of early childhood is one of initiative versus guilt.
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| G) | Children's play can be classified according to the amount of social interaction that occurs.
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| H) | The child's superego develops as he or she resolves the Oedipus conflict and identifies with the same-sex parent.
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| I) | Disputes between two- and four-year-old siblings occur an average of 6.3 times per hour and parents intervene in about 57 percent of these disputes.
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