This study analyze the reliability of the Inventory of Motivations for AIDS
Volunteerism and its factorial structure with a Spanish sample of 130 volu
nteers. Results show the high internal consistency of the Inventory of Moti
vations (0.9). The factorial results have revealed that this questionaire s
hows a structure of five factores that explainthe 64.4% of the variance. Th
is is consistent with the Funcional Approach of the Motivation of Omoto and
Snyder. However, some differences have appeared between both factorial str
uctures, due to the different composition of the sample.