In sociology, anomie refers to a state of society characterized by chaos, the eroding of social regulation and moral values. Drawing upon recent developments in psychology, this thesis presents an analysis of anomie as a psychological construct. More specifically, this thesis aims to develop: a) a psychological conceptualization of anomie, b) a psycho-social analysis of the processes through which anomie leads to psychological outcomes, c) a social psychological conceptualization of individuals' responses to a high anomie contexts, d) a valid and reliable scale to measure anomie, and e) a cross-cultural examination of predictions that are derived from our conceptual framework of anomie.First, we present a historical overview of theoretical and empirical work on anomie (Chapter 2). The historical overview helps us to identify the contentious areas and longstanding problems in anomie literature requiring further development. We extend the theorizing on anomie by developing a psychological conceptualization of anomie (Chapter 3). As a psychological construct, we define anomie as the collective subjective perception about the state of society encompassing two conditions: the breakdown of social fabric (i.e., lack of trust and moral decline) and the breakdown in leadership (i.e., lack of legitimacy and effectiveness). This third chapter also examines individuals' responses to anomie. This is important to overcome the limitations of existing literature which typically conflates anomie with its outcomes. We argue that the primary psychological effect of anomie is the failure to satisfy four fundamental human needs including a need for a meaningful life, a need for self-esteem, a need to belong, and a need to have a sense of personal and collective control.We argue that there are two key responses to an anomic situation: a contraction of the personal self and a contraction of the social self. Contraction of personal self describes the detrimental consequences of anomie for personal well-being and the way it propels individuals to adopt control-restoring strategies such as authoritarianism. Contraction of social self refers to withdrawal from, and disidentification with, the superordinate group, thereby influencing the way individuals engage and interact with their social world. We argue that contraction of social self manifests itself as tribalism, a response whereby individuals withdraw from superordinate groups (trust becomes bounded) and turn to smaller groups on which they project familial ties.In order to enable an empirical examination of the conceptual framework of the psychology of anomie, we first develop a new measure, Perception of Anomie Scale (PAS, see Chapter 4). We operationalize anomie as a perception of the state of society encompassing two dimensions: perceived breakdown of social fabric and perceived breakdown of leadership. We present the evidence for the validity of the newly developed scale of PAS across six studies. Studies 1a (N = 199, first year psychology students from Australia) and 1b...