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…

Although volunteer tutors traditionally have formed the basis of the programs of Laubach Literacy Action and Literacy Volunteers of America, volunteers have begun to play a greater role in adult literacy instruction provided through community-based organizations, correctional institutions, churches, and federally funded adult basic education.…