Interviewer instructions
Question 28. When was [the respondent] born?
This question, similar to question 29, is designed to establish the age of all people, one of the fundamental attributes of the demographic analysis. Both questions are asked with the purpose of improving the quality of data collection.
Read the question that refers to the date of birth and wait for the interviewee's answer, then record it in the corresponding boxes, first the day, month with two digits and then the year with four digits.
For Example: If the person was born on October 2nd, 1973, then in the boxes you should record 02 10 1973
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There will be two cases in which: if the day and month of the person's birth is before or the same as the day and month of the interview, then the age will be equal to the difference between the two years.
If the day and month of birth is after the day and month of the interview, then the age will be equal to the difference of the two years minus one.
If the interviewee does not know his/her date of birth or age, you can estimate the age of that person with another member whose age is known and might look similar in age.
If necessary you can ask about an important event or time during the person's lifetime in the country, province or municipality, such as: a stream bed, a tropical storm, hurricanes, droughts or other type of natural disasters.
