Scientists Making a Difference is a fascinating collection of first-person narratives from the top psychological scientists of the modern era. These readable essays highlight the most important contributions to theory and research in psychological science, show how the greatest psychological scientists formulate and think about their work, and illustrate how their ideas develop over time. In particular, the authors address what they consider their most important scientific contribution, how they got the idea, how the idea matters for the world beyond academic psychology, and what they would like to see as the next steps in research. The contributors, who were chosen from an objectively compiled list of the most eminent psychological scientists, provide a broad range of insightful perspectives. This book is essential reading for students, researchers and professionals interested in learning about the development of the biggest ideas in modern psychological science, described firsthand by the scientists themselves.

The goal of this book is to characterize the nature of abilities, competencies, and expertise, and to understand the relations among them. The book therefore seeks to integrate into a coherent discipline what formerly have been, to a large extent, three separate disciplines. Such integration makes both theoretical and practical sense, because abilities represent potentials to achieve competencies, and ultimately, expertise. Authors of each chapter (a) present their views on the nature of abilities, competencies, and expertise; (b) present their views on the interrelationships among these three constructs; (c) state their views on how these three constructs can be assessed and developed; (d) present empirical data supporting their position; (e) compare and contrast their position to alternative positions, showing why they believe their position to be preferred; and (f) speculate on the implications of their viewpoint for science, education, and society.