Educational Psychology is a special field of endeavor since it strives to apply what we know about many different disciplines to the broad process of education. In the most general terms, you can expect to find topics in this area that fall into the categories of human learning and development (across the life span), motivation, measurement and statistics, and curriculum and teaching. There are few comprehensive overviews of the field of educational psychology, and the purpose of this two-volume Encyclopedia is to share this information in a way that is, above all, informative without being overly technical or intimidating.