Interviewer instructions
Age is calculated at the time when this person left his/her birth place for the first
time for another place. Assumed that a person left his birth place for the first time for an other
place when he was 10 years old, a year later he returned to his birth place and lived for some
years, then he migrated to another place when he was 20 years of age, the result is to record 10
(years olds).
If the respondent does not remember the age when he first migrated, then the interviewer
should help him remember his age by relying on some special historical events (of the nation or
of each region, even of the family themselves, their relatives ). For example; the respondent
might have migrated for the first time 2 years after the birth of his first child. Then the
interviewer asks to see the birth certificate of this child to verify the year when this child was
born, calculate the age of the respondent in that year then add 2 to have the exact age