This book presents the extensive results of a study of how students are affected by their college experiences. Chapter 1 discusses the question of how to assess the impact of the college experience and outlines the overall design of the study. Chapter 2 describes each of the 135 college environmental measures and 57 "student involvement" measures used in the analysis. Chapter 3 presents a detailed evaluation of how the environmental characteristics and the experiences of involvement affect a single outcome measure: the student's political identification. The next six chapters present findings concerning environmental and involvement effects on eighty-one other outcomes. Chapter 4 treat personality and self-concept. Chapter 5 covers attitudes, values and beliefs. Chapter 6 details behavior patterns and changes. Chapter 7 looks at academic and cognitive development. Chapter 8 discusses career development. Chapter 9 treats satisfaction with college. Chapter 10 summarizes the results separately for each environmental measure, and Chapter 11 summarizes results separately for each involvement measure. The final chapter discusses the implication of the study for educational theory and practice. Appended are additional technical details concerning the analyses. Also included are an index and over 80 references. (Author/JB)