IFSS_CMOKDDOB_1: Century month of first non-bio child's birth

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Summary for Variable Group: Non-biological children

This variable group provides information on whether the respondent raised her husband/partner's children or other non-biological children, and how many of those children she raised. Additional information is provided for the first three non-biological children who lived with the respondent. This information includes the child's sex, relationship to the respondent, date of birth, Hispanic origin, and race, as well as whether the respondent adopted the child, when the child came to live with the respondent, whether the child still lives with the respondent, and whether the child was born in the U.S.


IFSS_CMOKDDOB_1

Century month of first non-bio child's birth

Availability

2002 NSFG
1995 NSFG

Source Variables

Source Questions

CMOKDDOB3 BJ-11 2002 NSFG
CMOKDDOB2 BJ-11 2002 NSFG
CMOKDDOB BJ-11 2002 NSFG
OKDDOB02 BL-10 1995 NSFG
OKDDOB01 BL-10 1995 NSFG
OKDDOB00 BL-10 1995 NSFG

Description

IFSS_CMOKDDOB_1, IFSS_CMOKDDOB_2, and IFSS_CMOKDDOB_3 give the first three non-biological children's birthdays in century months.

General Comparability Notes

Summary: Century month of the child's birth was obtained by asking either for the child's actual date of birth or for the month and year of the child's birth - those dates were then converted to century months. Instructions direct the interviewer to probe for a season when a month is not known.

The respondent universes for these variables were functionally equivalent (the respondent reported having non-biological children that had been under her care). The only differences in the applicability criteria, such as that the respondent had not yet begun her period or that she had never been married and never pregnant, are unlikely to result in many, if any, women being left out of the question sample who would have been included otherwise.

The universe of children to whom the question applies varies between years. In 1995, the question was asked of all non-biological children who ever lived with the respondent. In 2002, however, the child universe was restricted to only non-biological children who currently live with or were adopted by the respondent. This change in universe could pose analytical problems; concerned analysts can use IFSS_STILHEROK and IFSS_ADPTOTKD to determine which children were still in the household and/or adopted to create entirely comparable universes.

We chose to harmonize only the first three non-biological children across the studies to keep this variable consistent with the other non-biological children variables.

See also:
IFSS_OTHERKID
IFSS_NOTHERKID
IFSS_ADPTOTKD_1
IFSS_ADPTOTKD_2
IFSS_ADPTOTKD_3
IFSS_CMOKDCAM_1
IFSS_CMOKDCAM_2
IFSS_CMOKDCAM_3
IFSS_OKBORNUS_1
IFSS_OKBORNUS_2
IFSS_OKBORNUS_3
IFSS_OKDISABL
IFSS_OTHKDRAC_1
IFSS_OTHKDRAC_2
IFSS_OTHKDRAC_3
IFSS_OTHKDSPN_1
IFSS_OTHKDSPN_2
IFSS_OTHKDSPN_3
IFSS_RELOTHKD_1
IFSS_RELOTHKD_2
IFSS_RELOTHKD_3
IFSS_SEXOTHKD_1
IFSS_SEXOTHKD_2
IFSS_SEXOTHKD_3
IFSS_STILHEROK_1
IFSS_STILHEROK_2
IFSS_STILHEROK_3

Imputation Flag Exists

Imputation Flag Values
-1 Illogical value
0 Not imputed
1 Imputed in original study
2 Logically imputed
3 Month imputed (Original file edit)
4 Age known, month imputed
5 Originally imputed as June, recoded to random month
6 Month imputed
7 Multiple regression imputed: Not ascertained
8 Multiple regression imputed: Refused
9 Multiple regression imputed: Don't know
10 Midpoint of a given range
11 Answer comes from a follow-up question
12 Midpoint of a range given as a follow-up
13 Answer is rounded up
14 Answer is rounded down
15 Reported months and weeks, weeks<=4
16 Reported months=trunc(weeks/4.35)
17 Reported months=weeks & weeks>4
18 Reported months!=trunc(weeks/4.35), months!=weeks, weeks>4
19 Months coded NA/RF/DK
20 Weeks coded NA/RF/DK
21 Impossible to determine which method used last

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