Intellectual disabilities affect a person's adaptive behavior. Adaptive behavior includes conceptual skills, social skills and practical skills. Therefore, a person with intellectual disabilities may have more difficulty with language, literacy, money and time management, interpersonal skills, self-esteem, problem solving, activities of daily living, transportation, schedules, etc. This is one of several developmental disabilities. "Developmental disability" is the umbrella term that includes intellectual disabilities. Developmental disabilities are severe chronic disabilities that affect cognitive ability and sometimes have physical manifestations.