Self-expanding Activity

Novelty can make an activity engaging and arousing, creating conditions for a person to encounter unfamiliar perspectives, challenges, or forms of competence. These experiences may broaden the person’s sense of self when the resulting skills, resources, identities, or viewpoints become integrated into self-concept. The psychological outcome is therefore more than temporary enjoyment: it can support perceived personal growth.

Close others can become part of the context through which new experiences are explored and interpreted. When people engage in an activity together, the experience may contribute simultaneously to personal development and interpersonal closeness. This makes shared self-expanding activity useful for examining how relationship quality changes as partners incorporate new perspectives, abilities, or resources into their understanding of themselves and their connection.

Activities are especially relevant when they combine engagement with novelty, challenge, or complexity. These features can encourage people to move beyond familiar routines and encounter material that broadens their perspectives or capacities. The activity does not need to produce the same outcome for everyone; its value depends on whether the experience contributes new skills, identities, resources, or viewpoints that can enter self-concept.

A research design can begin by selecting an engaging experience that introduces novelty, challenge, or complexity, then specifying whether participants engage alone or with a close other. Researchers can examine outcomes tied to self-expansion, such as changes in perceived growth, relationship quality, interpersonal closeness, motivation, or well-being. Comparing these outcomes across activity contexts helps clarify how the experience functions psychologically.

Psychologists may use them when investigating how shared experiences influence relationship quality and interpersonal closeness over time. The approach is useful because it connects the content of an activity, such as its novelty or complexity, with relational outcomes and with changes in each person’s sense of self. It can therefore help examine why some shared experiences strengthen connection while also supporting development.

Applications can focus on designing shared experiences that offer meaningful novelty, challenge, or complexity rather than relying only on familiar routines. Such experiences may provide opportunities for personal development while also strengthening connection with a close other. In psychological research, examining motivation and well-being alongside self-concept and relationship outcomes helps show how engaging activities may affect both individual functioning and social life.