Kadelphianism Psychologists often refer to the period of life known as adolescence as one of the most difficult stages of development that an individual will endure. It has been stated that adolescence is the time when an individual forms his/her own sense of identity. A sense of identity is defined as “an organized sense of how our own personality traits, values, and beliefs fit together in defining who we are.” Therefor, the development of a sense of identity is, in fact, the basis for a stable adult personality. Certain responsibilities accompany this development of an identity, such as the commitments "to oneself, to one's family, to significant others, and to the var