Changes in ego and moral development in adolescents: a longitudinal study

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Abstract
A longitudinal study was designed to examine the relation between Loevinger''s measure of ego development and moral development as indexed by Rest''s Defining Issues Test in a sample of 123 adolescents at 12 to 14 years of age and four years later. Study I assessed differential rates of change and theoretically predicted directions of change in the two developmental functions and gender differences in ego development. Substantial ego stage movement occurred (60 per cent advancement, 40 per cent stability); moral growth was moderate. Girls scored a half ego stage ahead of boys; patterns of directional change were similar. Ego level and moral development related at either fixed point in time, but ego functioning in early adolescence did not predict subsequent moral development. Study II addressed adolescents'' perceptions of parenting styles in relation to these social cognitive functions. Parental behaviours that involve loving or support related to higher ego levels; parental demanding associated with lower ego development in early adolescence. Traditional gender-related parent socialization was found among girls and boys with greater ego development. The mediating role of perceived childrearing styles was considered in relation to gender differences in ego development.