Dutch Parliamentary Election Study, cumulative data set 1971-2006 (DPES/NKO 1971-2006)

This dataset is a compilation of common core variables included in the Dutch Parliamentary Election Studies of 1971, 1972, 1977, 1981, 1982, 1986, 1989, 1994, 1998, 2002, 2003, and 2006. However, several of the election studies consist of pre-election interviews as well as post-election interviews.

Hence, the criteria for selecting the waves and variables were: (1) The waves and variables included in the integrated dataset should be as representative as possible of the Dutch electorate, (2) If a variable was not available in the first wave of a study, it was taken from the second wave or the third wave, (3) All variables included at least four times in the 1971-2006 studies were included in the integrated dataset (albeit with some exceptions, documented below), and (4) If necessary, selected variables were recoded and converted to facilitate longitudinal analyses.