The aim of the file is to give a data user a detailed overview of fully harmonised GGP data. First of all, the variables begin with a letter designating the wave of data collection (“a” for the first wave likewise “b” for the second wave). We have attempted to keep the names of variables the same across the waves, and all the new variables would be identified as follows [“wave letter”]n e.g. bn301. The codebook starts with the constructed variables that sum the key socio-demographic characteristics of the respondent. Besides, this file contains the information about the consolidated variables and also which variables are used for the consolidation.
All the country specific variables end with an underscore followed by [“country code”]01 e.g. Australia a119_2401. Hence, the country code, as an example, for Australia is 24. While the country specific values are at least 4 digits long (F4 format) and begin with the country code: e.g. Australia 2401. These country specificities are recorded in the GGS Codebook. You can check which variables are available for which country in the Online data analysis suite. Details about the specific methodologies of each country are available in the data documentation section.