WLS Codebooks

Note: Codebooks contain frequency data from the private data release. For some variables, these differ from the frequencies in the public release. Variables that differ between the public and private versions include "(not available on public release)" as part of the variable description, or a note indicating the difference between the public and private versions.

Sibling Spouse IQ

OVERVIEW:

Sibling Spouse IQ data were collected for all spouses where we had a valid high
school name, maiden name, and either DOB or year graduated.

Information about Sibling Spouse IQ was collected in the following way:

-In 2003-2004 we began speaking to graduate and sibling spouses.  While
interviewing spouses we ascertained their maiden name, whether or not they
attended high school in Wisconsin, if so what high school they attended, and
finally their date of birth.

-With the above information collected we were able to use spouses date of birth
and high school information to calculate estimations of the year in which
spouses were in particular grade levels and in what school.  We then used these
estimations combined with their maiden name to search through the Wisconsin
Cooperative Testing Program books for Spouses Henmon-Nelson scores (books with
scores exist for WI schools from 1930-1980).

-Each case was checked three times; 1.)The first check was done quickly on the
estimated year. 2.) For cases that did not yield a score on the first check we
looked at plus and minus three years from the estimated year.  In addition, if
the reported high school was in a big city we checked all other high schools in
that city. 3.) After the first two checks, if a case did not have 2 scores we
checked all high school years without a score in  the same manner as check 2.

-Finally, once Hemnon-Nelson scores were located for spouses we followed an
already established formula (see Cor652, Memo124) to convert raw Henmon-Nelson
scores for grades 9-12 taken in any year into the metric of  Wisconsin IQ
scores jor Juniors in 1957.  In this way (for example), a score from a spouse
who took the test as a 9th grader in 1938 could be compared to a graduate who
took the test as a Junior in 1956.

   
BRIEF VARIABLE DESCRIPTIONS: 

NOTE:  "Best measure" (bm) represents spouse's junior year score, if no junior
score exists then we used the converted senior year score, if no senior then
sophomore, if no sophomore then freshman.

   sib_spwiiq_bm        Best measure of spouse IQ mapped from converted 
                        Henmon-Nelson score.   

   sib_sphnrs_bm        Best measure of spouse Henmon-Nelson raw score.

   sib_spwicr_bm        Best measure of spouse WI centile rank based on 
                        converted Henmon-Nelson score.

   sib_spncr_bm         Best measure of spouse National centile rank based
                        on converted Henmon-Nelson score.

   sib_spbook_flag_bm   Best measure of years difference between estimated 
                        graduation and WI book found in.

   sib_iqsource         The grade level in which raw Henmom-Nelson scores 
                        were converted into best measure IQ score.
                        
   sib_spwiiq_f         Spouse WI IQ based on the conversion of freshman raw 
                        Henmon-Nelson score 

   sib_sphnrs_f         Spouse converted freshman Henmon-Nelson score 

   sib_spwicr_f         Spouse WI centile rank based on converted freshman 
                        Henmon-Nelson score 

   sib_spncr_f          Spouse National centile rank based on converted 
                        freshman Henmon-Nelson score 
 
   sib_spwiiq_p         Spouse WI IQ based on the conversion of sophomore raw 
                        Henmon-Nelson score 

   sib_sphnrs_p         Spouse converted sophomore Henmon-Nelson score 

   sib_spwicr_p         Spouse WI centile rank based on converted sophomore 
                        Henmon-Nelson score 

   sib_spncr_p          Spouse National centile rank based on converted 
                        sophomore Henmon-Nelson score 
 
   sib_spwiiq_j         Spouse WI IQ based on the conversion of junior 
                        Henmon-Nelson score 

   sib_sphnrs_j         Spouse converted junior Henmon-Nelson score 

   sib_spwicr_j         Spouse WI centile rank based on converted junior 
                        Henmon-Nelson score 

   sib_spncr_j          Spouse National centile rank based on converted junior 
                        Henmon-Nelson score 
 
   sib_spwiiq_s         Spouse WI IQ based on the conversion of senior 
                        Henmon-Nelson score 

   sib_sphnrs_s         Spouse converted senior Henmon-Nelson score 

   sib_spwicr_s         Spouse WI centile rank based on converted senior 
                        Henmon-Nelson score 

   sib_spncr_s          Spouse National centile rank based on converted senior 
                        Henmon-Nelson score 

   sib_fbook_flag       Difference in years between estimated graduation and WI
                        book score was found in for freshman 

   sib_pbook_flag       Difference in years between estimated graduation and WI
                        book score was found in for sophomores 

   sib_jbook_flag       Difference in years between estimated graduation and WI
                        book score was found in for juniors 

   sib_sbook_flag       Difference in years between estimated graduation and WI
                        book score was found in for seniors 

                           
**Note: For variable creation details please refer to COR652

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