ABSTRACT
This article reviews theoretically informed research on grandparent-grandchild (GP-GC) communication. Research has been organized herein according to whether it is guided by an intergroup theory, an affect theory, or another type of theory. After reviewing research under these three broad categories, a heuristic value and degree of support for each theory are proposed for helping future researchers in their theoretical selections. Each theory is then positioned in a two-dimensional space consisting of interpersonal and intergroup dimensions to visually demonstrate theoretical lacunae that future researchers can address. We end by discussing how researchers can utilize theory as a basis for probing the role of demographic characteristics in influencing GP-GC communication.