The object of this article is to focus on a survey on political participation in Belgium in the mid seventies. By political participation, the author refers to a set of political activities - conventional and less conventional, electoral and pre-electoral - which are hierarchical structured on a Guttman scale. Although the research is more or less unique - in Belgian terms - in this respect, the results are at first glance compatible with earlier findings. Most Belgians are rather passive citizens; 30 % of the survey sample performs none of the activities integrated in the scale. A closer look learns that male, middle aged citizens with some education and a decent job are most involved in polities, but it reveals also that gender, age, socio-economie class and educational attainment are not the one and only reliable predictors of political activity.