This article attempts to draft a framework for the comparison of movem
ent participation. The standards of comparison I developed at the move
ment level were the magnitude of mobilization potentials, the composit
ion of multi-organizational fields, organizational characteristics, an
d action orientation. Utilizing this framework; I compared mobilizatio
n campaigns for three different types of activities conducted by three
different movements: a campaign conducted by a labor union for, possi
bly, a strike, a campaign of the Dutch peace movement in a local commu
nity for a national demonstration, and campaigns by women's groups in
a community for a variety of activities. I explain differences in moti
vational dynamics and levels of participation in terms of differing mo
vement characteristics. Finally, I discuss the advantages of comparati
ve work on social movements.