Data archives (data and codebook):

Main study: at DANS (P0866); at ICPSR (8876)

Panel study: at DANS (P0999) ; at ICPSR (6742)

Stratified sample: at DANS (P0979)

Principal investigator(s): C. van der Eijk (University of Amsterdam, the Netherlands), B. Niemoeller (University of Amsterdam, the Netherlands), G.A. Irwin (University of Leiden, the Netherlands)

Fieldwork organization: Inter\View

Design: This study contained a two-wave, short term panel study. The basis for this study was a freshly drawn representative sample of the Dutch electorate at the time of the Parliamentary elections. The first wave was held in the last weeks of March and in April 1986. The second wave of interviews started the day after the Parliamentary elections of May 21, 1986 and continued trough June. The panel study consisted of three waves. The first two waves were conducted in 1986, the third wave was held after the 1989 Parliamentary election.

Fieldwork dates: The fieldwork (main study) was done before the election date from March 21 till the end of April and after the election date from May 22 till the end of June 1986. The election date was May 21, 1986. The fieldwork of the panel study was done from January 1981 till June 1986.

Sampling frame: The same sampling procedure as in the 1981 and 1982 election studies is applied. First of all a sample of households had been drawn from the mail-delivery register. Then one elector per household had been selected for interviewing. The gross sample size had been set at 3000 and the minimum number of addresses for each municipality in the sample had been set to four. 2.988 addresses were selected, because sometimes more than one household belongs to the same address, the number of households in the sample had been 3.093. From each household, one person was to be selected at random. Because of not inhabited addresses and foreigners, the gross sample turned into 2.772. This panel study was administered in three waves. The sampling procedure for the first and second wave can be read above. The sampling procedure for the third wave (after the 1989 election) was quite different. A sample of 4.000 households was drawn from the Geographic Base Register – which is based to a large extent on the national mail delivery register of the Netherlands. From all eligible citizens within each household, one person was randomly selected by interviewing the person whose birthday was first.

Response: 1.630 respondents completed the interview in the first wave, which means that there was a response rate of 59 percent. The response in the second wave was 83 percent of the first wave (1.357 respondents).

Panel study: This election study did include a panel study. This study consisted of three waves. The first wave was held before the 1986 election, the second after the 1986 election and the third wave was held after the 1989 election. The study period of this panel study began in 1986 and ended in 1989. The principal investigators of this study were C. van der Eijk and B. Niemoeller (both University of Amsterdam, the Netherlands) and C. Irwin (University of Leiden, the Netherlands).