Migrant Individual-Level Concepts/Issues
The Types of Migrants
There are several different types of migrants within the 1994 and 2000 data collections. Please see the
Migrant Definitions document to get a clear understanding of the different migrant types.
One Individual, Two Migrant Rosters
There are individuals in the 1994 and 2000 Migrant Follow-Up surveys
who appear
on two migrant household rosters. This is a rare occurrence in
both surveys with only 3 individuals in
1994 and 14 individuals in 2000. In 1994, it was determined long
after the fieldwork that the individual interviewed in only one of the
two households. The individual was then assigned a code of "2"
on the
IVSTATUS
variable in the household where s/he did
not interview. In
2000, the possibility of a migrant appearing in two households was
anticipated before the fieldwork. The questionnaire was designed in a way to assign a code of “2” on
IVSTATUS
if
the individual was found on Form 8 of another migrant questionnaire.
Once assigned this code, the individual was not interviewed for that
household. Most of the cases (9 of 14) were discovered during the
fieldwork; however 5 cases were found later. For the 5
cases found later, the migrant was either not interviewed at all in the
second household (
IVSTATUS=0) or was not even recognized as a study migrant in the second household (
STMIGFL=0). See the
Duplicate Migrants document for a few examples from the 1994 and 2000 surveys.
Special Linked Individuals in the 1994 Migrant Follow-Up
There are 66 individuals in the 1994 Migrant Follow-Up who link back to individuals coded as living in the village (
Q1=1, 2 or 4) in the 1994 Household Survey. These individuals have been flagged using two different flag variables,
NCODE3FL and
F23OLDFL. The individuals flagged with the NCODE3FL variable are ones who
link back to a person who is simply not coded as Q1=3 in the household
survey. The individuals flagged with the F23OLDFL variable are
ones who link back to a person who is not coded as Q1=3 and who is more
specifically an "
Old Individual treated as a New Individual."
The majority of these situations were discovered after the
fieldwork. One probable scenario for these situations is
that
after the household survey interviews but before the migrant follow-up
interviews, a spouse or a child joined their migrant spouse or migrant
parents at the new migrant location. These originally "living in the village" indivduals were now
living with the migrant at the time of the migrant interview and were subsequently listed on the migrant's household
roster. In the F23OLDFL cases, these individuals may have been
originally followed-up as 1984 study migrants (see
Migrant Definitions document) and their household status changed to "F2-OLD" or "F3-OLD" later.
Special Linked Individuals in the 2000 Migrant Follow-Up
There are 90 individuals in the 2000 Migrant Follow-Up who were
not
treated as study migrants but actually link back to individuals in the
2000 Household Survey. These individuals have been flagged using
the flag variable
NSIDSFL. Of the 90 individuals, 46 link back to individuals coded as living in the village (
X1=1, 2 or 4) on Form 1 and Form 2. These
individuals are most likely similar to the 1994 scenario where a spouse
or a child joined their migrant spouse or migrant
parents at the new migrant location after the completion of the
household survey. So, these originally "living in the village"
indivduals were now
living with the migrant at the time of the migrant interview and were
subsequently listed on the migrant's household
roster. The remaining 44 individuals flagged by the NSIDSFL variable link back to a person who is coded as a migrant (
X1=3)
on Form 1. 35 of these migrants were not 18
years or older and subsequently could not be interviewed as a study
migrant in the Migrant Follow-Up (see
Migrant Definitions document).
"Non-Study" Migrants in 1994 and 2000
There are individuals, called "non-study" migrants, in
each of the Migrant Follow-Up Surveys that were listed on the household
rosters of the migrants. These individuals were simply people
living with the study migrants at the time of the interview who had no
other association with the Nang Rong Projects. These individuals
are missing information for all identifiers that link back to the 1984,
1994 or 2000 household surveys. See some basic frequencies on these individuals in the
Non-Study Migrants document.
