K. Warner Schaie analyses his comprehensive study of aging's effects on intelligence

This multi-contributor work integrates research on adolescent and adult development, which are typically treated sepatately.

Fifteen years ago, Jeffrey Jensen Arnett proposed emerging adulthood as a new life stage at ages 18-29, one distinct from both the adolescence that precedes it and the young adulthood that eventually follows. Rather than marrying and becoming parents in their early 20s, most people in developed countries now postpone these transitions until at least their late 20s, spending these years in self-focused explorations as they try out different possibilities in their education, careers, and relationships. Since Arnett proposed his theory of emerging adulthood in 2000, it has turned into a full-fledged academic field, and the ideas have been applied in practical areas as well, such as mental health and education. The Oxford Handbook of Emerging Adulthood brings together for the first time the wealth of theory and research that has developed in this new and burgeoning field. It includes chapters by many prominent scholars on a wide range of topics, such as brain development, relations with friends, relations with parents, expectations for marriage, sexual relationships, media use, substance use and abuse, and resilience. The chapters both summarize the existing research and point the way to new prospects for research in the years to come.

This volume presents the history, latest data, and results from the Seattle Longitudinal Study (SLS). The purpose of the SLS is to study various aspects of psychological development during the adult years. Focusing on a random sample of 500 adults ranging in age from 25 to 95 years old, the SLS is organized around 5 fundamental questions.

Development of Adult Thinking is a timely synthesis and evaluation of the current knowledge and emerging issues relating to adult cognitive development and learning. Focusing on psychological and educational cutting-edge research as well as giving an overview of the key theorists such as Piaget and Kohlberg, Kallio and the team of expert contributors offer a holistic view on the development of adult thinking, representing perspectives from developmental, moral, and social psychology, as well as education and philosophy. These topics are divided into three sections: Adult cognitive and moral development, Perspectives of adult learning, and Open questions and new approaches, offering introduction, analysis, and directions for future research. This text is essential reading for students and researchers in developmental psychology and related courses as well as adult educators and teachers working in adult education.

Adolescenceâ€"beginning with the onset of puberty and ending in the mid-20sâ€"is a critical period of development during which key areas of the brain mature and develop. These changes in brain structure, function, and connectivity mark adolescence as a period of opportunity to discover new vistas, to form relationships with peers and adults, and to explore one's developing identity. It is also a period of resilience that can ameliorate childhood setbacks and set the stage for a thriving trajectory over the life course. Because adolescents comprise nearly one-fourth of the entire U.S. population, the nation needs policies and practices that will better leverage these developmental opportunities to harness the promise of adolescenceâ€"rather than focusing myopically on containing its risks. This report examines the neurobiological and socio-behavioral science of adolescent development and outlines how this knowledge can be applied, both to promote adolescent well-being, resilience, and development, and to rectify structural barriers and inequalities in opportunity, enabling all adolescents to flourish.