Psychologists can now quantify behaviours beyond the laboratory using a mass-adopted, unified system that is primed for data capture a.k.a. smartphones. This is the first book to bring together related areas of smartphone research and point towards how psychology can benefit and engage with these developments in the future. It critically considers how smartphones and related digital devices help answer and generate new research questions for psychological science. The book then guides readers through how smartphones are being used within psychology and social science more broadly. Drawing from examples of both good and bad practice within current research, a new perspective is brought to major themes and debates across behavioural science. In the digital age, smartphones and associated devices will be able to accomplish much more in the near future. Psychology has a key role to play when it comes to balancing this monumental potential with carefully considered research.

‘David Ellis' work has been crucial in revealing the limitations of traditional research into the effects of digital technology. He is one of a new breed of methodologically careful researchers, who are reforming psychological science. His new book is an excellent primer for those interested in reinforcing the discipline's foundations.’

Tom Chivers - author of The AI Does Not Hate You

‘In this thorough and wide-ranging book, David Ellis brings together what psychological science has to say about smartphones into a single authoritative source. This book is set to become a landmark volume for researchers in psychology and across the social sciences.’

Samuel D. Gosling - Professor of Psychology, University of Texas

‘In an area of research often consumed by more hyperbole than science, this book offers a useful guide for those conducting and following research on this important topic.’

Patrick M. Markey - Professor of Psychology, Villanova University

‘As psychologists seek an alternative to button presses and questionnaires, David Ellis provides a compelling alternative and a tour de force of what smartphones offer to research in the social sciences.’

Paul Taylor - Professor of Psychology, Lancaster University

‘The book recommends itself for use in advanced undergraduate and graduate courses in behavioral science and human-computer interaction.’

J. M. Carroll Source: Choice