Dyadic data analysis 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