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Whipple's index. Whipple's index (or index of concentration), invented by American demographer George Chandler Whipple (1866–1924), is a method to measure the tendency for individuals to inaccurately report their actual age or date of birth. Respondents to a census or other survey sometimes report their age or date of birth as a round number ...
The age, year, and day must be supplied as natural numbers; month can be specified as a natural number as well as by name or abbreviation (e.g. "August" or "Aug").The Gregorian calendar is assumed, with no special support provided for dual dating or the difference between Old Style and New Style dates.
Age calculation templates. Wikipedia uses several templates that self-update every day to keep date and age information current. These are very useful for a dynamic online encyclopedia and save users from having to regularly update that kind of information. However, when using this kind of template, a few things should be kept in mind.
This template calculates a person's current age based on a known age as of specified date. This is useful when a reference states a person's age at the time of the reference's publication. The age, year, and day must be supplied as natural numbers; month can be specified as a natural number as well as by name or abbreviation (e.g., "August" or ...
The estimated date of delivery (EDD), also known as expected date of confinement, [1] and estimated due date or simply due date, is a term describing the estimated delivery date for a pregnant woman. [2] Normal pregnancies last between 38 and 42 weeks. [3] Children are delivered on their expected due date about 4% of the time.
Age in years, months and days. This template returns the number of full years, then surplus months, then surplus days between two specified dates. If the second set of parameters is not included, it will return the number of years, months and days between a specified date and today's date. The words "year", "month" and "day" are plural when ...
Template documentation. This template calculates a person's approximate birth year based on their age at death. This is useful when a reliable source states only their age at death. This can also be used when a person is dead and a reliable source states only their age at the time of publication, but their actual death date is not known.
Module:Check for unknown parameters ( sandbox) { { Birth-date and age }} displays a person’s birth date and age. Besides calculating the age of the person, the benefit of using this template is to allow for the inclusion of hidden microformat dates, which may be indexed or searched by software tools. Note: The template may not calculate the ...