In this Fifth Edition of her acclaimed text, Elizabeth D. Hutchison uses her multidimensional framework (person, environment, and time) as a way to effectively organize human behavior theory course material in a meaningful way for students. Thoroughly updated to reflect recent developments in the field, the book provides a comprehensive and readable global perspective on the person and environment construct, weaving powerful case studies with recent innovations in theory and research. Examining both predictable and unpredictable changes that can impact human behavior across time, the book looks at all the major developmental stages ranging from conception through very late adulthood, and covers life stages that are often overlooked in other texts (such as very late adulthood).