Why I cannot see some European countries in the WVS 5-wave aggregate?

The WVS 5-wave aggregate includes WVS 1981-1984, WVS 1990-1994, WVS 1995-1998, WVS 2000-2004 and WVS 2005-2009 data. That is, it doesn't include the EVS waves (EVS 1981-1984, EVS 1991-1994 and EVS 1999). That is why some European countries (not all) are missing for these years.

Is it possible to download the data for doing analysis in my own computer?

Yes, you can download it from the Data files section. Select the file and format you want to download and complete the registration information (when asked) with your name, organization and email. Then you will be able to begin download.

How is weight managed?

S017 and S017a are N preserving weightings, as originally provided by participants. S018 and S018a are corrected weights to give an N=1000 (while preserving the internal proportions of S017/S017a) and S019 and S019a are equivalent to S018/S018a but give an N=1500. You can see how to use the N=1000 weight to build you own population weighted samples by reading the following paper: http://www.jdsurvey.net/jds/jdsurveyActualidad.jsp?Idioma=I&SeccionTexto=0405.

Which programs can I use to analyze data?

You can use any statistical package that supports the following formats:

SAV, which is an SPSS for Windows format

POR, which is an SPSS portable format

STAT, which is a format for STATA statistical package.

SAS, which is a format for SAS statistical package

Is there a document with the integrated questionnaire of the four waves?

Yes, you can download it from the Additional Documents section.

What is the difference between S003 and S003A?

S003 is the standard country variable. However, Germany, Serbia-Montenegro and Bosnia-Herzegovina can be analyzed as "splitted" samples (i.e., Germany-East + Germany-West, Serbia + Montenegro and Bosnian Federation + SrpSka Republic). To do this, we provide S003A.

Note that if you use S003, you can use the optional S017, S018 or S019 weighting variables, but if you use S003A as the basic "country/region" unit, you will need to use S017A, S018A or S019A.