Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down at the end of May, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: standardizing scores by cohort


From   Paul Byatta <paulbyatta@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: standardizing scores by cohort
Date   Wed, 24 Apr 2013 14:15:41 +0300

Hi

I am trying to standardize raw
scores for several cohorts of students based on year of admission to high
school.

My data looks like this


StudentID    Year of                   math
                   Admission (yoa)

1                  2004                     78
2                  2004                     83
3                  2004                     99
4                  2005                      58
5                  2005                     68
6                  2005                     67
7                  2006                     87
8                  2006                     75
9                  2006                    56

It would have been easier to use


egen std_math =3D std(math) by yoa

But then egen doesn=92t go with =93by=94 in this case.

Anybody with a suggestion of how standardize the scores without having to
through the long process that is (below) and combining the generated
variables to get std_math?



egen std_math4 =3D std(math) if yoa=3D=3D2004
egen std_math5 =3D std(math) if yoa=3D=3D2005
egen std_math6 =3D std(math) if yoa=3D=3D2006

Thanks

Paul
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index