Intellectual maturity refers to the development of the child's potentialities, which depends on his or her hereditarypotentialities of the child, which depends on the hereditary endowment and the environment.environment. Deficits or delays in learning are not always easy to detect, until the school stage begins.early to assess each of the skills, intellectual aptitudes and to know strengths or weaknesses in the earlystrengths or weaknesses in early childhood. The use of the BADyG/i test gives us to know the level of intellectualto know the level of children's intellectual maturity.