“…These networks have many structural characteristics: size, density, composition (i.e., what categories of people are most represented), and length of relationships (Wellman, 1981). Social ties within our networks serve many vital functions that include providing access to needed resources, support, control, and companionship (see Rook, 1987aRook, , 1987b. But the interpersonal characteristics of our social networks may also include social constraints and=or conflict (e.g., Lepore, 1992;Lepore, Silver, Wortman, & Wayment, 1996).…”