Basic definitions and overview -- The measurement of nonindependence -- Analyzing between- and within-dyads independent variables -- Using multilevel modeling to study dyads -- Using structural equation modeling to study dyads -- Tests of correlational structure and differential variance -- Analyzing mixed independent variables: the actor-partner interdependence model -- Social relations designs with indistinguishable members -- Social relations designs with roles -- One-with-many designs -- Social network analysis -- Dyadic indexes -- Over-time analyses: interval outcomes -- Over-time analyses: dichotomous outcomes