Abstract
Psychosocial factors and the type of volunteerism. The first purpose of this study is to research the existence of differences between two types of volunteerism in certain variables. The second purpose is to identify the variables that increasing the prediction of sustained volunteerism. 290 volunteers completed a questionnaire and after two telephone follow-ups were carried out to determine whether volunteers remained in the NGO. The results show that environmental and socio-assistential volunteers are significantly different in several variables, and different variables and relationships according to the types of volunteerism allow increasing the prediction of sustained volunteerism.
