Adult illiteracy is a complex, costly, and growing social problem. Three common areas of controversy related to the problem are: (1) definitions of adult literacy, (2) characteristics of illiterate adults, and (3) the purposes of literacy education. Illiteracy can be understood only in relation to a culture's definition of literacy. Due to…

This digest provides an overview of mental retardation in children and adults. It begins by discussing the definition of mental retardation and the three components that are required for an accurate diagnosis: an IQ score of approximately 70 or below, a determination of deficits in adaptive behavior, and origins of the disability prior to age 18.…

Various researchers, including Carl Jung, Charlotte Buhler, Erik Erikson, and Robert Havighurst, have formulated sequential models of adult development. More recent investigators, such as Daniel Levinson, Roger Gould, and Gail Sheehy have formulated age-related sequential models of adult development that view the various stages of adulthood in…