The methodology used is mixed with a quantitative and qualitative approach. The first one is a psychosocial approach with two groups: donors of gametes without children, and donors who have already procreated. Two questionnaires will be used in this survey. The first aims to study the donors' socio-personal characteristics and motivations. The latter studies donors' personality traits.
The second approach is qualitative by a clinical case study. It is a psycho-dynamic approach, taking into consideration the donor (men and women), with all their subjectivity, their personal and family history and their representations.