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NSY79 Child / Young Adult Errata and User Notes
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.
Users are cautioned that we have discovered an error in the NLSY urban/rural residence variable. This error
affects variables in the following rounds:
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's explanation of the differences between the 1990 and 2000 definitions can be found here: www.census.gov/geo/www/ua/uac2k_90.html. R23-2008 NLSY79 Child-Young Adult Release1) ERRATA 2010 (10/15/2010) NLSY79 Child 1986-2008 The following 2008 Temperament subscores (affecting 5 child cases) were inadvertently omitted from the R23-2008 public data release:
Datafile name = Child2008_TemperamentAddedScores.csv SAS file to read data: Child2008_TemperamentAddedScores.sas 2) BPI scores based on trichotomous inputs In the 1994-2008 NLSY79 Child survey rounds, users are provided with an alternative set of BPI scores based on trichotomous inputs. A set of comparable scores for 1986-1992 is now available. Users will find the data files for 1986-1992, a documentation file containing SAS code to read the data, and a set of frequency distributions for these scores in the following zip file: BPI1986-1992.
NLSY79 CHILD
Behavior Problems Index (BPI): Revised Scores for 1986-1992
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Each file in this series contains a set of Behavior Problems Index scores that are based on
the non-collapsed BPI items administered for children 4 or older in 1986-1992. As opposed to
the BPI scores currently available on the public release of the NLSY Child data, the scores
in these files are computed using the trichotomous item inputs from the Mother Supplement.
SAS Description
Varname
BPTOTR86 BPI total raw score, trichotomous items 86
BPTOTP86 BPI total percentile score, trichotomous items 86
BPTOTS86 BPI total standard score, trichotomous items 86
BPEXTR86 BPI externalizing raw score, trichotomous items 86
BPEXTP86 BPI externalizing percentile score, trichotomous items 86
BPEXTS86 BPI externalizing standard score, trichotomous items 86
BPINTR86 BPI internalizing raw score, trichotomous items 86
BPINTP86 BPI internalizing percentile score, trichotomous items 86
BPINTS86 BPI internalizing standard score, trichotomous items 86
BPTOTR88 BPI total raw score, trichotomous items 88
BPTOTP88 BPI total percentile score, trichotomous items 88
BPTOTS88 BPI total standard score, trichotomous items 88
BPEXTR88 BPI externalizing raw score, trichotomous items 88
BPEXTP88 BPI externalizing percentile score, trichotomous items 88
BPEXTS88 BPI externalizing standard score, trichotomous items 88
BPINTR88 BPI internalizing raw score, trichotomous items 88
BPINTP88 BPI internalizing percentile score, trichotomous items 88
BPINTS88 BPI internalizing standard score, trichotomous items 88
BPTOTR90 BPI total raw score, trichotomous items 90
BPTOTP90 BPI total percentile score, trichotomous items 90
BPTOTS90 BPI total standard score, trichotomous items 90
BPEXTR90 BPI externalizing raw score, trichotomous items 90
BPEXTP90 BPI externalizing percentile score, trichotomous items 90
BPEXTS90 BPI externalizing standard score, trichotomous items 90
BPINTR90 BPI internalizing raw score, trichotomous items 90
BPINTP90 BPI internalizing percentile score, trichotomous items 90
BPINTS90 BPI internalizing standard score, trichotomous items 90
BPTOTR92 BPI total raw score, trichotomous items 92
BPTOTP92 BPI total percentile score, trichotomous items 92
BPTOTS92 BPI total standard score, trichotomous items 92
BPEXTR92 BPI externalizing raw score, trichotomous items 92
BPEXTP92 BPI externalizing percentile score, trichotomous items 92
BPEXTS92 BPI externalizing standard score, trichotomous items 92
BPINTR92 BPI internalizing raw score, trichotomous items 92
BPINTP92 BPI internalizing percentile score, trichotomous items 92
BPINTS92 BPI internalizing standard score, trichotomous items 92
Behavior Problems Index (BPI): Revised Scores for 1986-1992
File Record Layout
********************************************************************************************
Here is the record layout for the 4 BPI files containing revised scores based
on non-trichotomized item inputs:
filename data1 'bpirev86.dat' lrecl=43;
filename data2 'bpirev88.dat' lrecl=43;
filename data3 'bpirev90.dat' lrecl=43;
filename data4 'bpirev92.dat' lrecl=43;
****************************************************************************
infile data1;
input @1 (childid) (7.)
@8 (BPTOTR86 BPTOTP86 BPTOTS86
BPEXTR86 BPEXTP86 BPEXTS86
BPINTR86 BPINTP86 BPINTS86) (4.);
NOTE: The infile data1 is:
File Name=bpirev86.dat,
The minimum record length is 43.
The data set has 4971 observations and 10 variables.
****************************************************************************
infile data2;
input @1 (childid) (7.)
@8 (BPTOTR88 BPTOTP88 BPTOTS88
BPEXTR88 BPEXTP88 BPEXTS88
BPINTR88 BPINTP88 BPINTS88) (4.);
NOTE: The infile data2 is:
File Name=bpirev88.dat,
The minimum record length is 43.
The data set has 6266 observations and 10 variables.
****************************************************************************
infile data3;
input @1 (childid) (7.)
@8 (BPTOTR90 BPTOTP90 BPTOTS90
BPEXTR90 BPEXTP90 BPEXTS90
BPINTR90 BPINTP90 BPINTS90) (4.);
NOTE: The infile data3 is:
File Name=bpirev90.dat,
The minimum record length is 43.
The data set has 5803 observations and 10 variables.
****************************************************************************
infile data4;
input @1 (childid) (7.)
@8 (BPTOTR92 BPTOTP92 BPTOTS92
BPEXTR92 BPEXTP92 BPEXTS92
BPINTR92 BPINTP92 BPINTS92) (4.);
NOTE: The infile data4 is:
File Name=bpirev92.dat,
The minimum record length is 43.
The data set has 6509 observations and 10 variables.
3) Corrected Ever Married Flag and Month/Year of First Marriage for Young Adults The algorithm used to update the NLSY79 Young Adult XRND variables for ever married and month/year of first marriage did not pick up respondents who had been living with a partner at a previous interview whom they had subsequently married by the 2008 interview. These variables have been reconstructed using an updated algorithm that incorporates these missed cases. Users are advised to use the updated variables, which can be downloaded here and merged in. These new variables are contained in the following zip file: ya_1st_marriage. 4) R23-2008 NLSY79 Child-Young Adult Release - errata NLSY79 Child 1986-2008: Corrected Temperament 2008 scores for Compliance and Friendliness The following two Temperament 2008 subscores were incorrectly computed for several cases in the R23-2008 public data release:
Updated scores for these two subscales, for the cases needing updated values, are contained in the following two comma-delimited files:
1. Temperament2008_FriendlinessScoreRevised.csv (n=8; contains CPUBID and revised friendliness subscale score) Table for Child/YA Preliminary 2010 Sample Sizes by Year of Birth Errata for R22-2006 NLSY79 Child-Young Adult Public Release Errata for R21-2004 NLSY79 Child-Young Adult Update Errata for R20-2002 NLSY79 Child-Young Adult Public Releases November & June Errata for NLSY79 Child Interview Dates 1986-1992 Errata for R19-2000 NLSY79 Child-Young Adult Public Release | |||||||||||||||||||||||||||