Newest Errata [Posted 10/7/2019]
A Note about Sampling Weights
The NLSY79 Child and Young Adult 1994-2016 data set includes revisions to several Young Adult sampling weights as well as the replacement of two revised Child sampling weights.
Young Adult Sampling Weights
Beginning in 2010, young adults over age 30 are only interviewed every four years. The interviewed sample is selected by age as of December 31 of the survey year, so that approximately half of the older young adults are eligible each round. Since 2010, young adults age 31-32, 35-36, 39-40, 43-44, etc. as of December 31 of the target year have not be fielded.
The algorithm creating the round-specific sampling weights did not adequately account for this change in fielding, leading older YAs in the age groups that were fielded (33-34, 37-38, 41-42, etc.) to receive disproportionately high weights. The algorithm has been readjusted and the round-specific sampling weights for the interviewed YAs over age 30 have been replaced in the following variables:
Y26159.00 [YA10WEIGHT]
Y29663.00 [YA12WEIGHT]
Y33318.00 [YA14WEIGHT]
Child Sampling Weights
An error in the code creating the revised round-specific sampling weights that were released in 2002 led to the 1986 and 1988 Child Sampling weights to be incorrectly calculated. The following weights have been replaced for all affected children:
C05812.01 [CSAMWT1986_REV]
C08007.01 [CSAMWT1988_REV]
Other Errata
Incorrect Codebook Notes [Posted 9/24/2019]
The codebook notes on the following variables should read “2 IMPLIED DECIMALS."
Reference Number | Q Name | Title | Year |
Y28427.00 | Q12-165B.01 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 01 WAS WHEN R QUIT BREASTFEEDING | 2012 |
Y28428.00 | Q12-165B.02 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 02 WAS WHEN R QUIT BREASTFEEDING | 2012 |
Y28429.00 | Q12-165B.03 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 03 WAS WHEN R QUIT BREASTFEEDING | 2012 |
Y28430.00 | Q12-165B.04 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 04 WAS WHEN R QUIT BREASTFEEDING | 2012 |
Y28431.00 | Q12-165B.05 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 05 WAS WHEN R QUIT BREASTFEEDING | 2012 |
Y28432.00 | Q12-165B.06 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 06 WAS WHEN R QUIT BREASTFEEDING | 2012 |
Y32110.00 | Q12-165B.01 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 01 WAS WHEN R QUIT BREASTFEEDING | 2014 |
Y32111.00 | Q12-165B.02 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 02 WAS WHEN R QUIT BREASTFEEDING | 2014 |
Y32112.00 | Q12-165B.03 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 03 WAS WHEN R QUIT BREASTFEEDING | 2014 |
Y32113.00 | Q12-165B.04 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 04 WAS WHEN R QUIT BREASTFEEDING | 2014 |
Y32114.00 | Q12-165B.05 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 05 WAS WHEN R QUIT BREASTFEEDING | 2014 |
Y32115.00 | Q12-165B.06 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 06 WAS WHEN R QUIT BREASTFEEDING | 2014 |
Y32116.00 | Q12-165B.07 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 07 WAS WHEN R QUIT BREASTFEEDING | 2014 |
Y35522.00 | Q12-165B.01 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 01 WAS WHEN R QUIT BREASTFEEDING | 2016 |
Y35523.00 | Q12-165B.02 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 02 WAS WHEN R QUIT BREASTFEEDING | 2016 |
Y35524.00 | Q12-165B.03 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 03 WAS WHEN R QUIT BREASTFEEDING | 2016 |
Y35525.00 | Q12-165B.04 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 04 WAS WHEN R QUIT BREASTFEEDING | 2016 |
Y35526.00 | Q12-165B.05 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 05 WAS WHEN R QUIT BREASTFEEDING | 2016 |
Y35527.00 | Q12-165B.06 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 06 WAS WHEN R QUIT BREASTFEEDING | 2016 |
Y35528.00 | Q12-165B.07 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 07 WAS WHEN R QUIT BREASTFEEDING | 2016 |
Y35529.00 | Q12-165B.08 | NUMBER OF MONTHS OLD BIOLOGICAL CHILD 08 WAS WHEN R QUIT BREASTFEEDING | 2016 |
Uncorrectable Data Errors
R22-2006 NLSY79 Young Adult
An error in the construction of the information sheet flag indicating whether or not the father of the respondent is deceased led respondents whose last Young Adult interview was in 2004 to have this flag indicate incorrectly that their father was deceased. These respondents were subsequently skipped over questions concerning their contact with and closeness to their fathers. Users should note that respondents who were first-time Young adults in 2006 were unaffected by this problem and were branched correctly into questions concerning their biological fathers, as were older Young Adults who were noninterviews in 2004 but interviewed in 2006. Users should also note that some of the affected questions would only have been asked of respondents under age 21; users are encouraged to consult the questionnaire to determine skip patterns surrounding these questions. The affected questions, which will show a higher than expected level of missing values, are as follows:
Question | Variable Title |
Q2-26 | IS FATHER OF R LIVING AT THIS TIME? |
Q2-28 | DO MOTHER AND FATHER OF R LIVE IN SAME HOUSEHOLD? |
Q2-29 | WHEN DID R LAST LIVE WITH FATHER? |
Q2-29A | TIME UNIT OF WHEN R LAST LIVED WITH FATHER |
Q2-29B | LEFT HOUSEHOLD BEFORE BORN/NEVER LIVED WITH US |
Q2-31 | HOW LONG AGO DID FATHER LEAVE HOUSEHOLD OF R? |
Q2-31A | HOW LONG AGO DID FATHER LEAVE HOUSEHOLD OF MOTHER? |
Q2-31B | TIME UNIT FOR HOW LONG AGO FATHER LEFT HOUSEHOLD OF R/MOTHER |
Q2-33 | DID FATHER WORK FOR PAY ALL OF 2005, PART, OR NOT AT ALL? |
FATHOCC | OCCUPATION OF FATHER AT LONGEST JOB (CENSUS 3 DIGIT) [not in preliminary release] |
Q2-33C | DID FATHER WORK > 35 HOURS PER WEEK AT MOST RECENT JOB IN WEEKS WORKED |
Q2-33CC | DID FATHER WORK > 35 HOURS PER WEEK AT MOST RECENT JOB WHEN HE LAST WORKED |
Q2-34 | HIGHEST GRADE COMPLETED BY FATHER |
Q2-34A | NUMBER OF MILES R LIVES AWAY FROM BIOLOGICAL FATHER |
Q2-35 | HOW OFTEN R SEES FATHER |
Q2-35A | HOW OFTEN HAS R HAD CONTACT WITH FATHER IN PAST YEAR |
YASR-4D | HOW CLOSE DOES R FEEL TO FATHER? |