Introject and Interpersonal Complementarity in Everyday Interactions

We are examining how trait-level introject (self-toward-self) dimensions from the Structural Analysis of Social Behavior (SASB) framework moderate momentary interpersonal processes in daily life. Using baseline introject measures and interaction-level ecological momentary assessment (EMA) data collected over a 10-day ambulatory protocol, we test whether introject affiliation and autonomy moderate within-person associations between perceived partner behavior, momentary affect, and own interpersonal behavior. The primary focus is on introject affiliation as a moderator of (a) warmth complementarity in social interactions and (b) affective reactivity to perceived interpersonal hostility, drawing on self-verification theory (Swann, 1983). Secondary analyses examine introject autonomy as a moderator of control-related interpersonal behavior.