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Multilingual Demographic Dictionary, second unified edition, English volume
Age heaping
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It is often necessary to graduate distributions to correct the tendency of people to give their replies in round numbers 1. Heaping 2 or digit preference 2 can be found in various duration distributions (e.g., distribution of marriage duration, breastfeeding duration or birth intervals), but is particularly frequent in age distributions and reflects a tendency for people to state their ages in numbers ending with 0, 5, or other preferred digits, but . Age heaping 3 is sometimes measured with indices of age preference 4. Age data must often be corrected for other forms of age misreporting 5 or age reporting bias 5 More...