Designed for professionals and graduate students in the personality/social, military, and educational psychology, and assessment/evaluation communities, this volume explores the state of the art in motivational research for individuals and teams from multiple theoretical viewpoints as well as their effects in both schools and training environments. The great majority of education and training R&D is focused on the cognitive dimensions of learning, for instance, the acquisition and retention of knowledge and skills. Less attention has been given in the literature and in the design of education and training itself to motivational variables and their influence on performance. As such, this book is unique in the following montage of factors: * a focus on motivation of teams or groups as well as individuals; * an examination of the impact of motivation on performance (and, thus, also on cognition) rather than only on motivation itself; * research in training as well as educational settings. The data reported were collected in various venues including schools, laboratories and field settings. The chapter authors are the researchers that, in many cases, have defined the state of the art in motivation.