World Value Survey

Summary

From the WVS website (https://www.worldvaluessurvey.org/WVSContents.jsp):

"The WVS consists of nationally representative surveys conducted in almost 100 countries which contain almost 90 percent of the world’s population, using a common questionnaire. The WVS is the largest non-commercial, cross-national, time series investigation of human beliefs and values ever executed, currently including interviews with almost 400,000 respondents. Moreover the WVS is the only academic study covering the full range of global variations, from very poor to very rich countries, in all of the world’s major cultural zones."

The WVS has collected data in a series of waves that are now scheduled to occur every 5 years, and each survey has been conducted in more countries than the previous survey. Each survey ranges across multiple years because that is how long that takes to collect survey data in so many countries.

Wave 1 collected data on 11 countries from 1981-1984.

Wave 2 is from 1990-1994.

Wave 3 is from 1995-1998.

Wave 4 is from 1999-2004.

Wave 5 is from 2005-2009.

Wave 6 is from 2010-2014.

Wave 7 collected data on 80 countries from 2017-2022.

Wave 8 is planned for 2024-2026.

The IFs model currently has 113 series which use WVS data. Not all of the series use data that is included in the latest wave(s).