Errata for 2010 Child/Young Adult Release

Errata for 2010 Child/Young Adult Release

The Investigator contains the most recent release of each NLS cohort. Known problems with the current release of the Child-Young Adult are found below. Corrections have been made to items noted in the Errata of prior releases. For further questions, please contact NLS User Services.

Important Notice to Users

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 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's explanation of the differences between the 1990 and 2000 definitions can be found here: www.census.gov/geo/www/ua/uac2k_90.html.

R24-2010 NLSY79 Child-Young Adult Release

1) YA incorrect variable titles (September 2012)

The following variables were inadvertently assigned incorrect titles. Below are the corrected titles:

Reference Number Year Corrected Title Question Name
Y21960.00 2008 NUMBER OF TIMES IN PAST WEEK R HAS SENT CHILD 01 TO ROOM OR PUT IN TIME OUT Q13-2J.01
Y21960.00 2008 NUMBER OF TIMES IN PAST WEEK R HAS SENT CHILD 02 TO ROOM OR PUT IN TIME OUT Q13-2J.02
Y21962.00 2008 NUMBER OF TIMES IN PAST WEEK R HAS SENT CHILD 03 TO ROOM OR PUT IN TIME OUT Q13-2J.03
Y21963.00 2008 NUMBER OF TIMES IN PAST WEEK R HAS SENT CHILD 04 TO ROOM OR PUT IN TIME OUT Q13-2J.04
Y21964.00 2008 NUMBER OF TIMES IN PAST WEEK R HAS SENT CHILD 05 TO ROOM OR PUT IN TIME OUT Q13-2J.05
Y21965.00 2008 NUMBER OF TIMES IN PAST WEEK R HAS SENT CHILD 06 TO ROOM OR PUT IN TIME OUT Q13-2J.06
Y21966.00 2008 NUMBER OF TIMES IN PAST WEEK R HAS SENT CHILD 07 TO ROOM OR PUT IN TIME OUT Q13-2J.0

2) NLSY79 Child Survey: BPI Externalizing/Internalizing scales (Sept 2012)

The NLSY79 Child survey dataset provides users with two sets of scores based on the Behavior Problems Index items, administered to mothers of children age 4-14. One set of scores is based on binary recoded items (Often or Sometimes true, 1,2 = 1; Not true, 3=0). The second set, based on trichotomous inputs, is constructed from items that are recoded from 1 (Often True), 2 (Sometimes true), 3 (Not true) to 0, 1, 2 with the following recoding: 3=0, 2=1, 1=2 before summing. These "trichotomous-based" BPI scores are designed to measure a child's tendency to internalize or externalize behaviors. The composition of both types of scales can be found in Appendix D-1 of the NLSY79 Child/YA Data Users Guide.

A file that documents the norms for the external/internal BPI scores can be found here. In the next updated NLSY79 Child data users guide, the external/internal norms will be included as a table in Appendix D. The norms for the dichotomous-based BPI scores are available in Appendix D-2 of the NLSY79 Child/YA Data Users Guide.

3) R24-2010 Child Supplement Interviewer ID (January 2013)

The following variable, from the R24-2010 NLSY79 Child Supplement, was inadvertently excluded from the 1986-2010 NLSY79 Child/YA public data release:

C51327.01 CSIR-IDNUM-REV INT REMARKS: INTERVIEWER ASSIGNMENT IDENTIFICATION NUMBER FOR CASE 2010

Users can access this variable in the following file: R24-2010_CSIR_IDNUM_REV.xls, which can be read with the following SAS statements: R24-2010_CSIR_IDNUM_REV SAS.txt.

4) First cohabitation/First marriage transposition (May 2013)

The data for first cohabitation and first marriage, in the YA FERTILITY AND RELATIONSHIP DATA – CREATED area of interest, are transposed. Users may access the corrected data for these variables in the following file: ya10_evermarr_cohab.zip

Below is a crosswalk indicating which variables are transposed:

Data contained in: Is actually the data for:
Y12054.00 [EVERCOHAB] Y12057.00 [EVERMARRY]
Y12055.00 [MO1STCOHAB] Y12058.00 [MO1STMARR]
Y12056.00 [YR1STCOHAB] Y12059.00 [YR1STMARR]
Y12057.00 [EVERMARRY] Y12054.00 [EVERCOHAB]
Y12058.00 [MO1STMARR] Y12055.00 [MO1STCOHAB]
Y12059.00 [YR1STMARR] Y12056.00 [YR1STCOHAB]

5) NLSY79 Mother Supplement Interview Dates 1994-2000

A file is now available that contains the dates on which the NLSY79 Mother Supplements were administered in the 1994-2000 survey years. These interview dates were inadvertently omitted from the 1986-2010 NLSY79 Child/Young Adult data release and will be included in the next public release. The Mother Supplement (MS) date of interview data are provided in the following formats:  .dct, .dat, and .csv. Statements are included to read these files in STATA, SPSS, or SAS. The comma-delimited file (MS_Dates.csv) has a header row with the names of the variables, so it may be opened directly by spreadsheet or similar programs. The data and documentation for these variables are included in the following zip file: NLSY79Child_MSDates19942000.

IMPORTANT NOTE: The interview dates on this raw data file have NOT been edited or cleaned and appear as they were recorded by interviewers on the paper questionnaires in the field. Interviewers did not always record the interview date on both the Child and Mother Supplements, since, in the early survey rounds, both instruments were nearly always administered on the same date. Users who wish an accurate child age at the date of the child's interview should use the CSAGE and MSAGE variables provided in the CHILD BACKGROUND area of interest on the public Child data file. Users who wish to identify a child's interview status in a particular survey round should rely on the Child sampling weights for each survey year (values greater than 0).

 

Errata folder last updated 12/20/2013