Accounting for Sustained Volunteering by Young People: An Expanded TPB

This study tested an expanded TBP model, which included personal norms and self-identity as cognitive variables, in a sample
of current young volunteers of a general charity in the UK. Actual volunteering was measured via continued observation throughout
the duration of the projects. An integrative model of sustained volunteering was proposed because some relationships did not
follow the hypothesized paths. Subjective norm emerged as the exclusive determinant of sustained volunteering and also as
the potential mediator of the effects of other variables over future volunteering behavior. Two focus groups with volunteers
and 28 personal interviews with the coordinators of the volunteering projects were conducted to triangulate the research findings
and reveal the main causes for drop-outs and non-attendance.