Adult development

Most developmental theory front-loads childhood and then goes quiet — as if nothing much happens after adolescence. Adult development pushes back. The exam wants three names here: Levinson, Arnett, and the midlife crisis (with an evidence asterisk).

Daniel Levinson framed the adult lifespan as a series of "seasons of life" alternating between stable structure-building periods and transitional periods where the old life structure is questioned and reworked. His signature idea is the Dream — a vision of the adult life one is striving toward — which gets tested and revised at each transition. Levinson highlighted the Early Adult Transition (roughly 17–22), the Age 30 Transition, and famously the Midlife Transition (~40–45). His original work studied men (The Seasons of a Man's Life); he later extended it to women.

Jeffrey Arnett named emerging adulthood — a distinct developmental period roughly ages 18–25 (into the late 20s) in industrialized societies, when people are no longer adolescents but not yet fully committed to adult roles. Its features: identity exploration (especially in love and work), instability, self-focus, feeling in-between, and a sense of possibilities. It's the demographic reality behind delayed marriage, careers, and independence.

And the midlife crisis? Levinson's Midlife Transition popularized the idea of a turbulent, distressing reckoning at 40. But here's the evidence caveat the exam rewards: large studies do not support a universal, crisis-level upheaval at midlife. For most adults midlife is a period of transition and reappraisal, not crisis. The dramatic "buy-the-sports-car" version is more cultural trope than empirical finding — distress at midlife, when it occurs, is not uniquely tied to age.

Clinical Pearl: Pair the name to the phrase — Levinson = seasons + the Dream + midlife transition; Arnett = emerging adulthood (~18–25). And remember the caveat: the midlife "crisis" is not empirically universal; midlife is better described as reappraisal/transition than inevitable crisis.