Month_ _
Year _ _ _ _

Enter month and year of birth in the space provided; these should be consistent with the age given in column 4.
If both month and year are given: If the month of birth is before the census night (she/he has had her/his birthday this year), then her/his age should be equal the year of interview (2006). If the month of birth is after the census night (she/he has not had her/his birthday this year), then her/his age plus her/his year of birth should equal the previous year 2005. If the month of birth is the same as the month of interview, then a sum of either 2005 or 2006 is acceptable. If the sum is incorrect, then either the year of birth or the age (or both) are incorrect and need to be corrected. If the sum is off by exactly one year, then it is possible that the month of birth is incorrect and the other information is accurate. In such cases, the age and the month of birth all need to be reviewed to see where the error lies.
Example: If respondent tells you that she/he was born in January 1955, she/he is 51 years old, and you are interviewing him/her in April 2006 you would add 1955 to 51. If the information the respondent gave you is consistent, the sum should be 2006, since April comes after January. If another respondent tells you that she/he was born in December 1968 and she/he is 37 years old, the sum should equal 2005 since she/he will not become a full year older until December (April is before December).
[pg.17]
If only year of birth is recorded: Add the year of birth to the respondent's age and accept a sum of either 2005 or 2006. For example, if she/he says she was born in 1970, but she/he does not know the month, she should be either 35 (since 1970+35=2005) or 36 (since 1970+36=2006). If the sum does not equal either 2005 or 2006, probe to find out whether the year of birth or age is incorrect.
How to correct inconsistent answers: If the age plus the year of birth do not add to 2005 or 2006 as appropriate, probe to get consistent information. For example, the sum equals 2004 and it should be 2005, then you need to add 1 to either the age or the year of birth after checking with the respondent to see which one is wrong. If the sum adds to 2007 and it should be 2005, you need to subtract 2 from either the age or the year of birth or else subtract 1 from both the age and the year of birth. It is important to understand that either the age or year of birth or both may be incorrect.