Skip to main content
National Longitudinal Survey of Youth 1979 Child and Young Adult (NLSCYA)

Errata for 2006 Child/Young Adult Release

Important information: Errata updates in NLS Investigator

The NLS Investigator contains the most recent public release of each NLS cohort. Corrections have been made based on the items listed below (unless otherwise noted). These older, corrected error notices are retained for archival purposes, such as enabling replication of research performed before the errors were discovered. Please contact NLS User Services for additional information. Note: Any Geocode-related errata corrections have been made to the restricted-use data file. See the Accessing Data / Cohort page for more information on utilizing restricted-use data.

User note: NLSY urban/rural residence variable

Users are cautioned that we have discovered an error in the NLSY urban/rural residence variable. This error affects variables in the following rounds:

  • NLSY79: rounds 21-22 (2004-2006)
  • NLSY79 young adult: rounds 21-22 (2004-2006)

The NLSY97 urban/rural variables for rounds 8-11 will be corrected on the next public data release, scheduled for July 2010. The revised NLSY79 urban/rural variables will be released on this errata page as soon as they are created. We suggest that researchers using this variable obtain the revised data before concluding their research.

The error stems from a change in the Census Bureau's definition of an urban area. The 1990 Census criteria used in creating the NLSY urban/rural residence variable used the population of a place to determine the correct classification. People who lived in urbanized areas or places with a population of 2,500 or more were considered urban; everyone else was rural. The 2000 Census criteria changed the method of determining whether a particular point was urban or rural to one that relied on population density within an area. Areas of higher population density are called Urbanized Areas (UA) and Urban Clusters (UC). Residence in either is now considered urban.

From 2003 (the first year the new definition could be implemented), the NLS geocoders used a hybrid approach that considered respondents living in either an Urbanized Area (but NOT an Urban Cluster) or a place with a population of 2,500 or more to be urban. Otherwise the code is rural. A preliminary estimate of the differences between using this hybrid code and the 2000 Census definition indicates that 6% to 7% of respondents may be affected.

The Census Bureau website provides additional explanation about the Difference Between Urbanized Area Criteria from the 1990 Census and Census 2000.

Round 23 (2008) Young Adult release

The current data release for the NLSY79 Child data through 2006 and Young Adult data through 2008 has a systematic error in the codebook pages. A child who had previously been included in the database was determined to be a nonbiological child and removed from the database. The codebook, however, still has this child reflected in the counts but as missing on all variables, including C00001.00. When the codebook is rerun for the final release of the Child 2008 data, this anomaly will no longer be present in the codebook.

Round 22 (2006) NLSY79 Child/Young Adult release

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 ship patterns surrounding these questions. The affected questions, which will show a higher than expected level of missing values, are as follows:

Question Name 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?

Round 22 (2006) NLSY79 Child: Errata and documentation update

NLSY79 Child HOME recode items for ages 6-9 and 10-14

The documentation for items HOME-C09, HOME-C10, HOME-D08, and HOME-D09 is listed incorrectly in Appendices A-2c & A-2d of the NLSY79 Child Young Adult Data Users Guide. The correct recoding of values for these items appears below:

Question Name Scale Question Text Recode to 1 Recode to 0
HOME-C09

C

How often has a family member taken or arranged to take child to any type of museum?

2-5

1

HOME-C10

C

How often has a family member taken or arranged to take child to any type of musical or theatrical performance within the past year?

2-5

1

HOME-D08

C

How often has any family member taken or arranged to take child to any type of museum?

2-5

1

HOME-D08

C

How often has a family member taken or arranged to take child to any type of musical or theatrical performance within the past year?

2-5

1

Appendix B in the 2004 and 2006 NLSY79 Child/Young Adult User's Guide

Appendix B in the 2004 and 2006 NLSY79 Child/Young Adult Data Users Guides does not specify the precise question names of the items that comprise the Sociability scale for survey years 1986-1998. In the 1986-1992 survey years, the questions are named according to deck and column from the paper questionnaires. From 1994-1998, the naming convention for these three items is as follows: CSYYEV-1A, CSYYEV-1B, CSYYEV-1C, where "YY" refers to the survey year. The correctly documented items for 1986-1998 are as follows:

Appendix B. Temperament Scales - Sociability: Question names for 1986-1998

Attitude:
-------------------------------
C0525200	CS863131	CHILD'S ATTITUDE 1986
C0715300	CS883330	TESTING CONDITIONS: CHILD'S ATTITUDE TOWARD BEING TESTED 1988
C0926000	CS906021	TESTING CONDITIONS: CHILD'S ATTITUDE TOWARD BEING TESTED 1990
C1115500	CS926135	TESTING CONDITIONS: CHILD'S ATTITUDE TOWARD BEING TESTED 1992
C1222900	CS94EV-1A	TESTING CONDITIONS: CHILD'S ATTITUDE TOWARD BEING TESTED 1994
C1539800	CS96EV-1A	TESTING CONDITIONS: CHILD'S ATTITUDE TOWARD BEING TESTED 1996
C1784900	CS98EV-1A	TESTING CONDITIONS: CHILD'S ATTITUDE TOWARD BEING TESTED 1998

Rapport:
-------------------------------
C0525300	CS863132	CHILD'S RAPPORT 1986
C0715400	CS883331	TESTING CONDITIONS: CHILD'S RAPPORT WITH INTERVIEWER 1988
C0926100	CS906023	TESTING CONDITIONS: CHILD'S RAPPORT WITH INTERVIEWER 1990
C1115600	CS926137	TESTING CONDITIONS: CHILD'S RAPPORT WITH INTERVIEWER 1992
C1223000	CS94EV-1B	TESTING CONDITIONS: CHILD'S RAPPORT WITH INTERVIEWER 1994
C1539900	CS96EV-1B	TESTING CONDITIONS: CHILD'S RAPPORT WITH INTERVIEWER 1996
C1785000	CS98EV-1B	TESTING CONDITIONS: CHILD'S RAPPORT WITH INTERVIEWER 1998

Cooperation:
-------------------------------
C0525500	CS863134	CHILD'S COOPERATION 1986
C0715600	CS883333	TESTING CONDITIONS: CHILD'S COOPERATION 1988
C0926300	CS906027	TESTING CONDITIONS: CHILD'S COOPERATION 1990
C1115800	CS926141	TESTING CONDITIONS: CHILD'S COOPERATION 1992
C1223200	CS94EV-1D	TESTING CONDITIONS: CHILD'S COOPERATION 1994
C1540100	CS96EV-1D	TESTING CONDITIONS: CHILD'S COOPERATION 1996
C1785200	CS98EV-1D	TESTING CONDITIONS: CHILD'S COOPERATION 1998

Appendix B in the 2000 and 2002 NLSY79 Child/Young Adult Data Users Guides incorrectly specifies "perseverance" (instead of "cooperation") as an item in the composition of the Temperament "sociability" subscale. The following “cooperation” item (documented with the Child question names and reference #s for each survey year) is part of the Sociability scale, not the perseverance item:

Cooperation (NOT perseverance):
-------------------------------
C0525500	CS863134	CHILD'S COOPERATION 1986
C0715600	CS883333	TESTING CONDITIONS: CHILD'S COOPERATION 1988
C0926300	CS906027	TESTING CONDITIONS: CHILD'S COOPERATION 1990
C1115800	CS926141	TESTING CONDITIONS: CHILD'S COOPERATION 1992
C1223200	CS94EV-1D	TESTING CONDITIONS: CHILD'S COOPERATION 1994
C1540100	CS96EV-1D	TESTING CONDITIONS: CHILD'S COOPERATION 1996
C1785200	CS98EV-1D	TESTING CONDITIONS: CHILD'S COOPERATION 1998
C2295800	CSEV-1D		TESTING CONDITIONS: CHILD'S COOPERATION 2000
C2575100	CSEV-1D		TESTING CONDITIONS: CHILD'S COOPERATION 2002

Please note that Appendix B in the Child/Young Adult User's Guide after 2002 correctly specifies the composition of the sociability scale. NLSY79 Child/YA guides prior to 2000 did not contain this appendix.