^^Columbia school 1950s^^: voting behaviour→^^long term factors, campaigns dont matter, social idea w/class^^ (income, region, race etc)= ^^social theory of voting, shouldnt change a lot overtime^^, campaigns re-inforce pre-existing dispositions
MichiganSchool1960s:
mediumtoshorttermfactors,PID=unmovedmoversocialstructuremattersbutmuchvoteswings,spatialtheoryoverpredicts,socialtheoryunderpredicts→middlegroundispartisianID= stable + psycho connection, independent of current vote preference (may overlap but not inherent)
Affectivity w/ partisan ID