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Detailed Comparison of Variables in Version 1 and Version 2

1995 AHEAD (Wave 2) Core Final V2.0

05/29/2002

Version 1 of the 1995 AHEAD Core (Final) included all sections, but did not include "family" variables from sections PR, CS, D and J and "helper" variables from section E. Version 2 includes all sections and all variables. Version 2 obsoletes previously released data in:

  • 1995 AHEAD Core (Final) (v.1.0)
  • 1995 AHEAD Core Helper (Early) (v.2.0)
  • 1995 AHEAD Core Other Person (Early) (v.2.0)
Also in Version 2, CS variables with information provided by the coversheet respondent previously released at a respondent level are released at a household level. Some section N variables previously released at a household level are released at a respondent level. All modules are released in one file. The EV variables may be found in along with the section R variables. Variables from Module 1 and Module 2 have been combined. In addition, the variables included in Version 1 and Version 2 varied slightly. Bracket components are only included in Version 2. Bracket summary variables and continue variables are only included in Version 1. A detailed listing of variables not included in each of the two versions of the 1995 AHEAD Core Final dataset is available here.


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