Adult development and aging: Levinson, Havighurst, Kübler-Ross and the later years
Last reviewed September 2026 by Dr. Andrew Wichterman · Aligned to the current NCE blueprint. Valid for exams through June 30, 2027.
AI-narrated overview made with Google NotebookLM. The written lesson below is by Dr. Andrew Wichterman.
Adult development items name theorists and their central idea, and aging items test a small set of terms about cognition, social roles and grief. None of it is difficult; all of it is finite.
Try to answer each from memory first, even if you have to guess. Guessing before reading makes the answer stick; reveal only after you have tried.
Marcia: identity statuses
James Marcia extended Erikson's identity crisis into four statuses based on two dimensions, exploration and commitment. Identity diffusion: neither exploring nor committed. Foreclosure: committed without exploring, often to parents' plans. Moratorium: exploring without commitment, the active crisis. Identity achievement: explored and committed. Many young adults move through moratorium to achievement; foreclosure is the status most often tested because it looks like resolution but is not.
Levinson and the seasons
Daniel Levinson described adult life as alternating stable periods and transitions organized into eras. Early adult transition, 17 to 22. Entering the adult world, with the dream and a mentor. The age-30 transition. Settling down. The midlife transition, roughly 40 to 45, in which the dream is reappraised and the classic midlife crisis may occur. Entering middle adulthood. Levinson's original sample was men; a later study extended the model to women with similar structure and different content.
Havighurst, Gould, Neugarten, Peck
Robert Havighurst framed development as age-specific developmental tasks, with teachable moments when a person is ready to learn one. Roger Gould described adult transformations as shedding false childhood assumptions. Bernice Neugarten described the social clock, a culture's timetable for events such as marriage and retirement, and the stress of being off-time. Robert Peck extended Erikson's last two stages into tasks: in middle age, valuing wisdom over physical power and socializing over sexualizing; in old age, ego differentiation, body transcendence and ego transcendence.
Cognition and aging
Cattell and Horn distinguished fluid intelligence, reasoning and processing speed with novel material, which declines with age, from crystallized intelligence, accumulated knowledge and vocabulary, which holds or grows. K. Warner Schaie described adult cognitive stages: acquisitive in youth, achieving in young adulthood, responsible and executive in middle age, reintegrative in old age. Normal aging brings slower processing and some working memory decline but not dementia; the exam expects you to separate normal change from pathology.
Social theories of aging and grief
Disengagement theory, from Cumming and Henry, held that older adults naturally withdraw from social roles. Activity theory countered that continued engagement predicts satisfaction. Continuity theory holds that people maintain their earlier patterns. Elisabeth Kübler-Ross described five stages in dying patients, denial, anger, bargaining, depression and acceptance, which are not linear and were not designed as a grief model, though they are often used as one. William Worden reframed grief as four tasks: accept the reality of the loss, process the pain, adjust to a world without the deceased, and find an enduring connection while moving forward. Prolonged grief disorder entered the DSM-5-TR in 2022.
Without scrolling up, write everything you remember from this lesson. Then check yourself against the key terms. Recalling the whole lesson once, right after reading it, does more than reading it twice.
Ten more questions from the whole domain, with an explanation after each answer.
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