The present study employed constructs from self-determination theory, social-identity theory, and the theory of planned behaviour to examine the combined effects that social identity and perceived autonomy support exerted on attitudes, intentions and health behaviour. A prospective design was employed measuring constructs from the theory of planned behaviour, group norms, group identification, ...

Social identity is a key construct to understand online community life. While existing online identity studies present a relatively static conception of identity, grounded in user profiles and other personal information, in this paper the authors investigate more dynamic aspects of identity, grounded in patterns of social interaction in Facebook community life, drawing on social science researc...

Many studies have investigated social networks. So far little work has been done to explore the virtual identity construction in social network communities. The virtual identity that an individual constructed in the social network community may not be exactly same as his/her identity in the physical world. Using self-discrepancy theory and social capital theory as theoretical foundations, this ...

A social identity theory of leadership is described that views leadership as a group process generated by social categorization and prototype-based depersonalization processes associated with social identity. Group identification, as self-categorization, constructs an intragroup prototypicality gradient that invests the most prototypical member with the appearance of having influence; the appea...

Virtual healthcare communities are incorporating social network features to motivate more participation. Using the lens of social identity theory, this study looks at how the social network structure of virtual healthcare communities influences participation via social identity. In specific, the effect of cognitive, emotional and evaluative components of social identity are investigated. Uncert...

We combine social theory and NLP methods to classify English-speaking Twitter users’ online social identity in profile descriptions. We conduct two text classification experiments. In Experiment 1 we use a 5-category online social identity classification based on identity and self-categorization theories. While we are able to automatically classify two identity categories (Relational and Occupa...

This study draws upon self-verification theory, social identity theory and self-categorization theory to investigate the dual effects of system design, i.e., identity confirmation (the self) and identification (the community), on virtual community (VC) participation. An important theoretical development is the conceptualization of VC identity and the elucidation of its system design determinant...

This article presents a model of social identity development and integration in the self. Classic intergroup theories (e.g., social identity theory, self-categorization theory) address the situational, short-term changes in social identities. Although these theories identify the contextual and environmental factors that explain situational changes in social identification, the intraindividual p...

The purpose of rational choice theory is to explain social phenomena by assuming rational choice at the actor’s level. To realize this purpose, the theory assumes two mechanisms: choice by actors and the macro–micro–macro transition. After explaining these mechanisms, this article first shows how rational choice theory successfully explains the problem of social order embodied in various fields...