A model is described in which commitment to volunteering is hypothesized to be the result of
demographic qualities, personality, identity, values, and social relationships. The model is
tested and cross-validated using data from a nationally representative sample of American
adults. The results from structural equation modeling analyses suggest that the hypothetical
model provides a good fit to the data. Moreover, the findings suggest that the relations of
personality and demographic characteristics to hours devoted to volunteering are largely …