Aging, development, and Alzheimer's disease -- The concept and techniques of validation -- Using validation with people who are maloriented -- Using validation with people who are time confused -- Using validation with people who are repetitive movers -- Using validation with people who are in vegetation -- Using validation with people with early-onset Alzheimer's disease -- Who benefits from validation? -- How validation differs from other therapies used with old-old people -- Communicating with people who are maloriented -- Communicating with people who are time confused -- Communicating with people who are repetitive movers -- Communicating with maloriented and time confused people living in the community -- Validating family members -- Setting up validation groups -- Frequently asked questions.