Relating Citizenship Rights and Social Movements through Time
The last chapter looked at the relationship between citizenship rights and social movements over time. For the periods under study in three of the four cases it was able to conclude that this relationship is mutually conditioning in different degrees and ways. In the fourth case, Spain, these interactive effects remained moot. The analysis now proceeds to examine how this relationship develops through time by searching for the key moments that do most to shape it. Since such moments may be precipitated either by changes in social movement activity or by changes in rights provision, the enquiry focuses on the critical years or turning points of both trends and calculates their mutual impact. Thus, similarly to the last chapter, the relationship is examined in both directions (using model  and model ), but, in this instance, multiple interrupted time-series regression analysis (MITS) is employed to distinguish the effects of the critical changes in social movement activity on citizenship rights, and vice versa. Later in the chapter Boolean 'truth tables' ( Ragin 1987; Wickham-Crowley 1992) are constructed in order to establish the (necessary and sufficient) conditions for the impact of movements on rights, and vice versa, at particular moments in time, and to calculate the probabilities of this impact occurring at all.
The first step in examining the variable impact of social movement activity on citizenship rights is to select the years of most visible change in the social movement measures (as reported in Chapter