The Two-Year Child Outcomes Study (COS) data file and documentation include:

NOTE:  All files are in ASCII


\NEWWS\PUF

  \COVRMEMO.TXT

Provides an introduction to all data and documentation in the restricted access
files (CDs #1 - #3) and offers suggestions on how to use the files for research.


  \C2README.TXT

Provides a list and brief description of the files included on the
COS CD-ROM.


  \C2COVER.TXT

Describes the contents of the COS files and documentation and provides
important information about calculating impacts with the data set.



\NEWWS\PUF\2YEAR\COS\DATA\N2RC1326.TXT

This is the ASCII data file with responses to sections of the survey
administered to COS respondents (N=3,018). The file includes both the original
survey items from the COS modules of the Two-Year Client Survey and created
variables for Child Outcomes Study: covariates used in impact calculations,
subgroups, child outcomes, targeted intervening outcomes, and non-targeted
intervening outcomes. Each sample member has 14 records of data.

The file is sorted by each sample member's randomly generated IDNUMBER and
by record number.


IMPORTANT !!!:

1) Survey responses must be weighted to make the findings generalizable
to the Full Impact sample.  The variable that weights the responses is
called FIELDWGT and is included in the Two-Year Client Survey file: N2RS1221.TXT
(CD #2).  See C2COVER.TXT and SIMPMEMO.TXT (on CD #2) for details.

2) Respondents' additional background characteristics and administrative records
data are stored on the Full Sample Impact file: N2RI1213.TXT (CD #1).  Responses
to additional survey questions are stored on the 2-Year Client Survey file:
N2RS1221.TXT (CD #2).    These data should be merged (by IDNUMBER) for the
most accurate and complete analysis of program effects.


\NEWWS\PUF\2YEAR\COS\CODEBOOK\N2RCCBK.TXT

This file contains the data codebook, a comprehensive description of
N2RC1326.TXT. For each variable on the data file the codebook
provides the following information:  The name of the variable and
its starting and ending columns on the ASCII file, the variable's SAS
informat (5.0 is the default), the variable label,  a brief
description of the variable and any issues with the variable.
(Note: The data are stored in ASCII, so informats can be changed to
conform to any statistical or econometric software package.) The codebook
also displays the N, NMISS, MEAN, Standard Deviation, Minimum, and
Maximum for each variable.  For variables with 51 values or less,  a
frequency distribution is listed.  The frequencies show the value
labels. These may be copied and, if necessary, modified to be read into
SAS or any other statistical or econometric software package.



\NEWWS\PUF\2YEAR\COS\LAYOUT\N2RCPUT.TXT

This file contains the body of a SAS input statement (variable name,
starting column, length, informat)  which will read N2RC1326.TXT.
To run this input statement in SAS you must add the word INPUT to the
top line and a semicolon to the bottom line.  This statement can be
modified to input the data into any statistical or econometric software
package.


\NEWWS\PUF\2YEAR\COS\MEANS\N2RCMEAN.TXT

SAS PROC MEANS output contains the following information for all
variables:

        N, NMISS, MEAN, STD DEV, MINIMUM, MAXIMUM


\NEWWS\PUF\2YEAR\COS\LABEL\N2RCLAB.TXT

SAS variable label statements for each variable of the data file.
Labels can be modified to conform to syntax rules of any statistical or
econometric software package.



\NEWWS\PUF\2YEAR\COS\MEMOS


  \CVARMEMO.TXT

Provides additional background information on survey responses and outcome
measures created from these data.

  \UNIMPUTE.TXT

Contains SAS code that shows how covariate and subgroup measures were created.



\NEWWS\PUF\2YEAR\COS\OUTPUT

 \BRAKHLTH.LST

SAS output showing control group means on the Bracken raw score and the
maternal reports of the child being in very good or excellent health within
each site and comparing across sites. Shows data in Table 5.1 of the COS 2-year
impact report.


  \CSEMPLOY.LST

SAS output showing control group means on employment variables within each site
and comparing across sites. Shows data in Table 8.1 of the COS 2-year impact
report.


  \GLMBRAKN.LST

SAS output showing impacts on the Bracken raw score.  Shows data in Table 6.2 of
the COS 2-year impact report.


  \LOGHLTH.LST

SAS output showing impacts on the whether the focal child was in very good or
excellent health.  Shows data in Table 6.2 of the COS 2-year impact report.


  \EDURSKSG.LST

SAS output showing impacts on the mean Bracken score for the subgroups based on
education/literacy risks. Shows data in the COS 2-year impact report's Appendix
Table 7.1.


  \CUMRSKSG.LST

SAS output showing impacts on the measure of whether the focal child was in
very good or excellent health, for the subgroups based on the total number of
composite risks.  Shows data in the COS 2-year impact report's
Appendix Table 7.11.


\NEWWS\PUF\2YEAR\COS\TABLES\SAMTBL1.TXT

Displays sample sizes for full impact sample, Two-Year Client Survey
respondents, 2-year Child Outcomes Study survey respondents, Private Opinion
Survey respondents, and sample members who completed literacy and math tests at
baseline.  The table also shows random assignment dates.

