approval, age differences have narrowed, now showing about a 15 percent difference between youngest and oldest. These age differences heighten the significance of the general decline since 1978. If the only process of change had been the replacement of older generations by new cohorts of adults, there would have been a large, steady increase in favorability. What has happened instead is that those who were young in the 1970s began to rethink their positions, and those entering adulthood, though more favorable than the oldest cohorts, were less positive than those coming of age in the 1970s.
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