CHANGE NOTICE #3 - 3/19/96 WLS 1957-77

CHANGE NOTICE #3 - 3/19/96

DPLS edition 5 of the First Wave (1957-77) WLS data was released on 3/13/96.

If you received first wave data (1957-77 Surveys) before March 13, 1996, please read this report.

The extract program WLSGV was updated in March 1996. This updated version of WLSGV MUST be used with the Wave 1 data released in March 1996. The December 1995 version of WLSGV must be used with all previous editions of Wave 1 data.

In order to use the March 1996 version of WLSGV, you will need to obtain both the new executable program for your system and an updated version of the .prg list for the Wave 1 data set. This .prg list is named wls23_2.prg. The previous list was named wls23_1.prg; both the contents of the list and the name of the list have changed for this update. The .prg lists for Wave 2 were not altered.

This March 1996 release of WLSGV also includes an improvement for the Wave 2 data. The previous release of WLSGV could result in incorrect results if the user selected more than 200 variables from the same data module.

IT IS RECOMMENDED THAT THE USER COPY THE MARCH 1996 EDITION OF THE WAVE 1 DATA AND THE MARCH 1996 UPDATE OF THE WLSGV PROGRAM.

Summary of the 3/96 update (see below for details):

The FIFTH edition differs from previous releases in the following way:

The machine-readable codebook has been extensively revised and updated.
Releases of 1957-77 data prior to 11/95 contained a minor error in many occupational status and prestige variables, and they have been corrected on this release. The original variables from editions before 11/95 are retained at the end of the file for replication purposes. The versions of these status and prestige variables in the fourth edition of these data (11/95 release) contained serious errors and should NOT be used.
The errors and corrections in the status and prestige variables are described in the new Appendix P to the Wave 1 data. This Appendix is available in machine-readable form and can be downloaded with the documentation for this 3/96 release of the Wave 1 data.
Eight new variables have been added: one variable for the sample group number, GROUP91 and seven variables for the type of vocational-technical school attended for different programs, EDVTL1-EDVTL6, and XEDVTL1.
The 12 category codes of OCMR10 and XOCMR10 were expanded into 17 category occupational group codes.
OCMZ was updated for 1975 non-respondents with information obtained in the 1992/93 telephone survey.
Minor corrections/updates were made to the following variables:

XSTAT93P, XSTAT93M, SSBSEX, LIV92, DEATC92, OCSMPH, INMZ, OCMX1, CWHH57, CWMO57, OCR74, CWR74, OCMR74, OCS74, OCP74, BORSIB, CFOSX1-CFOSX10, CFOAG1-CFOAG6, CFOED1-CFOED6, IVRSBY, IVSSBY, and SSBPOS.
An error in the machine-readable documentation for XSMPL has been corrected. The printed copies of the original codebook have been correct.
New material on the variables EXPER, NEWEXPER, TENURE, and NEWTEN has been added to the paper copies of Appendix BB. See COR331 for creation of the work experience variables.

Details of the 3/96 updates:

Releases of 1957-77 data prior to March 1996 (WLS23U_2) contained an error in ALL status and prestige variables, and additional minor errors have been corrected and updates have been made. The variables affected are noted below.
Among non-respondents to the 1975 survey who were respondents in 1992/93 (and whose SEI and Prestige scores were copied to the Wave 1 data for selected variables in the 11/95 WLS release of Wave 1) these errors are very serious. It would be unwise to rely upon any analyses using the affected variables and cases in the 11/95 WLS release.

1970 - Basis Duncan Status and Siegel Prestige Scores in the data for the 3/96 release have been corrected as described in Appendix P - MEMO122. Among respondents to the 1975 telephone survey, the effects of these errors are minor.
- When assigning SEI and Prestige scores to non-split occupation lines, "total-based" rather than "male-based" scores were used.
- When assigning SEI and Prestige scores to occupation lines split by industry and class of worker, "male-based" scores were used. However, if an occupation/industry combination happened to "fall through" to a non-split line, then "total-based" scores were used.
- Some typos were found in the assigned SEI and Prestige scores.
Because of the extensive use of the old, incorrect variables in published work, the old variables remain intact, but have been moved to the end of the analysis file. The new, updated SEI and Prestige variables have been inserted into the main part of the WLS23U_2.DAT file, and have a "U" appended to the end of the variable name.

Updates to SEI and Prestige scores on the WLS23_1 file for 1975 non-respondents with 1992/93 data have been removed from the old variables which moved to the end of the file. These scores were incorrect (see Appendix E for Wave 2). Correct, updated scores for 1975 nonrespondents have been made to the updated SEI and Prestige variables (those with the "U" appended to the end of the variable name.)


New Variable  Columns    Old Variable  Columns

 Name                      Name



OCSH57U     496 -  498    OCSH57    3710 - 3712

OCPH57U     499 -  501    OCPH57    3713 - 3715



OCSM57U     514 -  516    OCSM57    3722 - 3724

OCPM57U     517 -  519    OCPM57    3725 - 3727



OCSSIBU     675 -  677    OCSSIB    3716 - 3718

OCPSIBU     678 -  680    OCPSIB    3719 - 3721



OCSZU       736 -  738    OCSZ      3728 - 3730

OCPZU       739 -  741    OCPZ      3731 - 3733



OCSX1U     1087 - 1089    OCSX1     3734 - 3736

OCPX1U     1090 - 1092    OCPX1     3737 - 3739



OCSX70U    1129 - 1131    OCSX70    3740 - 3742

OCPX70U    1132 - 1134    OCPX70    3743 - 3745



OCS74U     1182 - 1184    OCS74     3746 - 3748

OCP74U     1185 - 1187    OCP74     3749 - 3751



OCSXCRU    1293 - 1295    OCSXCR    3752 - 3754

OCPXCRU    1296 - 1298    OCPXCR    3755 - 3757



OCSR10U    1463 - 1465    OCSR10    3758 - 3760

OCPR10U    1466 - 1468    OCPR10    3761 - 3763



OCSCRSU    1527 - 1529    OCSCRS    3764 - 3766

OCPCRSU    1530 - 1532    OCPCRS    3767 - 3769



OCSSPHU    1556 - 1558    OCSSPH    3770 - 3772

OCPSPHU    1559 - 1561    OCPSPH    3773 - 3775



OCSASKU    1773 - 1775    OCSASK    3776 - 3778

OCPASKU    1776 - 1778    OCPASK    3779 - 3781



OCSXSKU    1784 - 1786    OCSXSK    3782 - 3784

OCPXSKU    1787 - 1789    OCPXSK    3785 - 3787



OCSWBMU    1826 - 1828    OCSWBM    3788 - 3790

OCPWBMU    1829 - 1831    OCPWBM    3791 - 3793



OCSWM1U    1857 - 1859    OCSWM1    3794 - 3796

OCPWM1U    1860 - 1862    OCPWM1    3797 - 3799



OCSW12U    1889 - 1891    OCSW12    3800 - 3802

OCPW12U    1892 - 1894    OCPW12    3803 - 3805



OCSW23U    1921 - 1923    OCSW23    3806 - 3808

OCPW23U    1924 - 1926    OCPW23    3809 - 3811



OCSW3LU    1953 - 1955    OCSW3L    3812 - 3814

OCPW3LU    1956 - 1958    OCPW3L    3815 - 3817



OCSYALU    1984 - 1986    OCSYAL    3818 - 3820

OCPYALU    1987 - 1989    OCPYAL    3821 - 3823



XOCSH57U   2605 - 2607    XOCSH57   3824 - 3826

XOCPH57U   2608 - 2610    XOCPH57   3827 - 3829



XOCSZU     2685 - 2687    XOCSZ     3830 - 3832

XOCPZU     2688 - 2690    XOCPZ     3833 - 3835



XOCSX1U    2883 - 2885    XOCSX1    3836 - 3838

XOCPX1U    2886 - 2888    XOCPX1    3839 - 3841



XOCSX70U   2925 - 2927    XOCSX70   3842 - 3844

XOCPX70U   2928 - 2930    XOCPX70   3845 - 3847



XOCS76U    2976 - 2978    XOCS76    3848 - 3850

XOCP76U    2979 - 2981    XOCP76    3851 - 3853



XOCSXCRU   3042 - 3044    XOCSXCR   3854 - 3856

XOCPXCRU   3045 - 3047    XOCPXCR   3857 - 3859



XOCSR10U   3142 - 3144    XOCSR10   3860 - 3862

XOCPR10U   3145 - 3147    XOCPR10   3863 - 3865



XOCSCRSU   3206 - 3208    XOCSCRS   3866 - 3868

XOCPCRSU   3209 - 3211    XOCPCRS   3869 - 3871

Eight variables were added:


3658-3659 GROUP91   Group to which respondent was randomly

                    assigned in 1991.  Those respondents

                    not known to be deceased by 1991 were

                    randomly divided into 10 groups.  (This

                    variable was used for some random treatment

                    of the respondents during the course of the

                    1992/93 interview.)



                 00-09          Group number

                 99             Not assigned to a group, deceased

                                prior to 1991 (STAT75=6-8)





The following 7 variables have been added to the public release:



895-896   EDVTL1    Where Received Vocational-Technical or

                    Apprenticeship Training, Program 1 (Q14c,

                    14d, 15c, 15d)



                 01             At a school

                 02             On the job

                 03             At a business or firm

                 04             Charitable or service

                                organization

                 05             Professional organization

                 06             Trade association

                 07             Union

                 08             Home study or correspondence

                 09             Hospital

                 10             Government (local, state,

                                federal)

                 11             Private individual, private group

                 12             Hotel, supper club

                 13             Other

                 77             Don't know

                 88             Inappropriate--no

                                vocational-technical or

                                apprenticeship training

                 99             Not ascertained or nonrespondent



909-910   EDVTL2    Where Received Vocational-Technical or

                    Apprenticeship Training, Program 2 (Q14c,

                    14d, 15c, 15d)



923-924   EDVTL3    Where Received Vocational-Technical or

                    Apprenticeship Training, Program 3 (Q14c,

                    14d, 15c, 15d)



937-938   EDVTL4    Where Received Vocational-Technical or

                    Apprenticeship Training, Program 4 (Q14c,

                    14d, 15c, 15d)



951-952   EDVTL5    Where Received Vocational-Technical or

                    Apprenticeship Training, Program 5 (Q14c,

                    14d, 15c, 15d)



965-966   EDVTL6    Where Received Vocational-Technical or

                    Apprenticeship Training, Program 6 (Q14c,

                    14d, 15c, 15d)



2805-2806 XEDVTL1   Where Received Vocational-Technical or

                    Apprenticeship Training for Longest Program

                    (Q12d, 12e)

Major corrections/updates were made to the following variables:

OCMR10, XOCMR10, and OCMZ.

The coding scheme was changed for OCMR10, occupational category for respondent's preferred job 10 years from now, and XOCMR10, occupational category for sibling's preferred job 10 years from now. Information about whether the respondent (or sibling) wished to work for self or someone else was collected in 1975 and 1977. Thus there is sufficient information to code these two variables (OCMR10 and XOCMR10) into the 17 category major occupational groups instead of the 12 occupational categories.

OCMR10 (col. 1461-1462) and XOCMR10 (col. 3140-3141) were replaced with the 17 category codes. The codes for these variables from WLS23_1 were not saved in WLS23_2.

OCMZ (col. 734-735) was updated for 1975 non-respondents with information obtained in the 1992/93 telephone survey.
Minor corrections/updates were made to the following variables:

XSTAT93P, XSTAT93M, SSBSEX, LIV92, DEATC92, OCSMPH, INMZ, OCMX1, CWHH57, CWMO57, OCR74, CWR74, OCMR74, OCS74, OCP74, BORSIB, CFOSX1-CFOSX6, CFOAG1-CFOAG6, CFOED1-CFOED6, IVRSBY, IVSSBY, and SSBPOS.
- XSTAT93P,
  
  outcome of 1993-1994 Sibling telephone interview. Nineteen cases that were previously coded 10, were changed to 9. The original code of 10 was incorrect for these 19 cases.
  
  XSTAT93M,
  
  outcome of 1993-1994 Sibling mail interview. New codes assigned to distinguish between those siblings who completed the phone and mail interviews and those who only completed the mail interview.
```
           1          Mail questionnaire and phone interview

                      completed

           2          Mail questionnaire completed, no phone

                      interview completed

           3          Mail questionnaire was sent to sibling, not

                      returned

           4          No mail questionnaire was sent to sibling
```
The following note was added to the documentation for XSTAT93M:

Note:

All siblings who were interviewed in 1977 and all siblings of respondents who completed the telephone interview in 1992-1993 were scheduled to be interviewed by telephone in 1993-1994. Additionally, siblings who completed the 1993-1994 telephone interview were to be sent a mail questionnaire. Due to budget constraints, it was not possible to complete all these interviews. Telephone interviews were attempted for all those siblings who were interviewed in 1977 (XSTAT77=1) and for all other siblings from groups (GROUP91) 2-9 (if the respondent completed a telephone interview in 1992-1993). Mail questionnaires were sent to the remaining 970 siblings from groups 0 and 1 (if the respondent completed the telephone interview). These mail questionnaires contained two additional pages ascertaining information about marriage, current job, children, birthdate, education and spouse's job. 559 of these siblings returned the mail questionnaire (XSTAT93M=2).

SSBSEX

Sex of selected sibling was changed for two siblings. These had been coded incorrectly in 1975 according to the 1993-94 sibling interview.

LIV92

Primary respondent's current mortality status and DEATC92, cause of primary respondent's death, were updated for three individuals for whom we recently received death information.

OCSMPH

Occupation categories of current spouse's head of household when spouse was 16. All inaps and refusals were coded 99 in WLS23_1. Inaps are now coded 88 and 99 is the code for refused/ not ascertained. This is consistent with the codes for other occupation category variables in WLS23_1.

INMZ

One case corrected for military code.

OCMX1

One case corrected for military code.

CWHH57, CWMO57, OCR74, CWR74, OCMR74, OCS74, and OCP74

Three cases have been changed to inapps on one or more of these variables.

BORSIB, CFOSX1-CFOSX6, CFOAG1-CFOAG6, CFOED1-CFOED6, IVRSBY, IVSSBY, and SSBPOS

R was not included in the sibling table in 7 cases. Because the ages of some siblings were missing, the program which constructed the sibling tables omitted these Rs. This has been corrected on this release.

CFOSX6-CFOSX10

One case had sex changed for siblings from don't know (7) to not ascertained (9).

XSMPL (cols. 2449-2450)

This variable had an error in the documentation which has been corrected.
In Wave 1 (1957-77) machine-readable codebook, the description for codes 04 and 05 were wrong. The descriptions of the sibling response status in 1977 were reversed. This has been corrected on the 3/96 release of WLS23U_2. The printed codebook has always been correct!

The following is the correct code.
```
2449-2450 XSMPL     Combined Sample Response Code



              01             Student in Sewell's 1/3 sample,

                             responded to 1964 postcard,

                             in Top 10% IQ Sample,

                             responded in 1975;

                             sibling responded in 1977



              02             Student in Sewell's 1/3 sample,

                             responded to 1964 postcard,

                             in Top 10% IQ Sample,

                             responded in 1975;

                             sibling DID NOT respond in 1977



              03             Student in Sewell's 1/3 sample,

                             responded to 1964 postcard,

                             NOT IN Top 10% IQ Sample,

                             responded in 1975;

                             sibling responded in 1977



              04             Student in Sewell's 1/3 sample,

                             responded to 1964 postcard;

                             NOT IN Top 10% IQ Sample,

                             responded in 1975;

                             sibling DID NOT respond in 1977



              05             Student in Sewell's 1/3 sample,

                             DID NOT respond to 1964 postcard,

                             in Top 10% IQ Sample,

                             responded in 1975;

                             sibling responded in 1977



              06             Student in Sewell's 1/3 sample,

                             DID NOT respond to 1964 postcard,

                             in Top 10% IQ Sample,

                             responded in 1975;

                             sibling DID NOT respond in 1977



              07             Student in Sewell's 1/3 sample,

                             DID NOT respond to 1964 postcard,

                             NOT IN Top 10% IQ Sample,

                             responded in 1975;

                             sibling responded in 1977



              08             Student in Sewell's 1/3 sample,

                             DID NOT respond to 1964 postcard,

                             NOT IN Top 10% IQ Sample,

                             responded in 1975;

                             sibling DID NOT respond in 1977



              09             Student in Sewell's 1/3 sample,

                             responded to 1964 postcard,

                             in Top 10% IQ Sample,

                             DID NOT respond in 1975;

                             sibling DID NOT respond in 1977



              10             Student in Sewell's 1/3 sample,

                             responded to 1964 postcard,

                             NOT IN Top 10% IQ Sample,

                             DID NOT respond in 1975;

                             sibling DID NOT respond in 1977



              11             Student in Sewell's 1/3 sample,

                             DID NOT respond to 1964 postcard,

                             in Top 10% IQ Sample,

                             DID NOT respond in 1975;

                             sibling DID NOT respond in 1977



              12             Student in Sewell's 1/3 sample,

                             DID NOT respond to 1964 postcard,

                             NOT IN Top 10% IQ Sample,

                             DID NOT respond in 1975;

                             sibling DID NOT respond in 1977
```