The statements that are FALSE regarding Sigmund Freud's theory are:
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As part of his theory, Freud identified certain psychosocial stages of development. (This statement is false because Erik Erikson, not Freud, is known for identifying psychosocial stages of development.)
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Freud based his theory on children with problems. (This statement is misleading; Freud primarily worked with adults and his theory was largely developed through studies of adult patients, particularly those with neuroses.)
Based on this analysis, the correct choice is:
3 and 4.