Puberty refers to the set of biological changes involved in reaching physical and sexual maturity and is universal. Adolescence refers to a life stage between the time puberty begins and the time adult status is approached. This is typically between the age of 10 to 18. In this stage, young people are preparing to take on the roles and responsibilities of adulthood in their culture. It is culturally constructed. The length (1), content (2) and daily experiences of adolescence (3) differ among cultures.

Plato and Aristotle believed that people develop reason in adolescence. In the middle ages, adolescence was seen as a time of innocence. Life-cycle service refers to a period late adolescence and early 20s in which young people would engage in domestic service, farm service or apprenticeships in various trades and crafts. This involved moving out of the family household and into the household

The Dutch association of psychologists has made ethical guidelines based on responsibility (1), integrity (2), respect (3) and expertise (4). There are several important points of the guidelines for use of tests (AST):

1. The initiator relationship
   The psychologist needs to determine who initiated the request for psychodiagnostic examination. The psychologist initially carries out the examination for the benefit of the initiator. The psychologist attempts to ask the questions of the initiator or if that is not possible, seeks contact with the initiator to rephrase the questions.
2. The psychologist’s expertise
   A client has the right to a psychologist’s expertise. The psychologist’s expertise must be up-to-date and maintained. It also means that the psychologist knows his own boundaries and limitations. Expertise also refers to the fact that the psychologist must make sure that the quality of the assessment is high.
3. Confidentiality
   The