Reflections on the actor-partner interdependence model

The actor–partner interdependence model (APIM) has been widely successful and has become the default method for analyses of dyadic data in which both members of the pair have the same measurements. This article reviews the history of the development of the APIM, focusing on the original presentation of the model, a 1979 article by Kraemer and Jacklin. Also discussed are the topics of APIM patterns, whether the APIM is a dyadic model, and the...