Is it possible to measure psychological attributes like intelligence, personality and attitudes and if so, how does that work? What does the term 'measurement' mean in a psychological context? This fascinating and timely book discusses these questions and investigates the possible answers that can be given response. Denny Borsboom provides an in-depth treatment of the philosophical foundations of widely used measurement models in psychology. The theoretical status of classical test theory, latent variable theory and positioned in terms of the underlying philosophy of science. Special attention is devoted to the central concept of test validity and future directions to improve the theory and practice of psychological measurement are outlined.

'One of the best fantasy book series of the past decade' TIME Never trust an assassin. Celaena's story continues in this second book in the #1 bestselling Throne of Glass series by Sarah J. Maas. Celaena Sardothien won a brutal contest to become the King's Champion. But she is far from loyal to the crown. Though she goes to great lengths to hide her secret, her deadly charade becomes more difficult when she realises she is not the only one seeking justice. Her search for answers ensnares those closest to her, and no one is safe from suspicion - not the Crown Prince Dorian; not Chaol, the Captain of the Guard; not even her best friend, Nehemia, a princess with a rebel heart. Then, one terrible night, the secrets they have all been keeping lead to an unspeakable tragedy. As Celaena's world shatters, she will be forced to decide once and for all where her true loyalties lie ... and what she is willing to fight for. The second book in the #1 New York Times bestselling Throne of Glass series returns readers to a land destroyed by liars, where one woman's truth is the only thing that can save them all.

The gripping first installment in New York Times bestselling author Tahereh Mafi’s Shatter Me series. One touch is all it takes. One touch, and Juliette Ferrars can leave a fully grown man gasping for air. One touch, and she can kill. No one knows why Juliette has such incredible power. It feels like a curse, a burden that one person alone could never bear. But The Reestablishment sees it as a gift, sees her as an opportunity. An opportunity for a deadly weapon. Juliette has never fought for herself before. But when she’s reunited with the one person who ever cared about her, she finds a strength she never knew she had. And don’t miss Defy Me, the shocking fifth book in the Shatter Me series!

A psychologist helps readers understand a variety of personality disorders and offers advice on dealing with clinically disturbed people.

Henri Bergson (1859–1941) is widely regarded as one of the most original and important philosophers of the twentieth century. His work explored a rich panoply of subjects, including time, memory, free will and humour and we owe the popular term élan vital to a fundamental insight of Bergson’s. His books provoked responses from some of the leading thinkers and philosophers of his time, including Albert Einstein, William James and Bertrand Russell, and he is acknowledged as a fundamental influence on Marcel Proust. The Bergsonian Mind is an outstanding, wide-ranging volume covering the major aspects of Bergson’s thought, from his early influences to his continued relevance and legacy. Thirty-six chapters by an international team of leading Bergson scholars are divided into five clear parts: Sources and Scene Mind and World Ethics and Politics Reception Bergson and Contemporary Thought. In these sections fundamental topics are examined, including time, freedom and determinism, memory, perception, evolutionary theory, pragmatism and art. Bergson’s impact beyond philosophy is also explored in chapters on Bergson and spiritualism, physics, biology, cinema and post-colonial thought. An indispensable resource for anyone in Philosophy studying and researching Bergson’s work, The Bergsonian Mind will also interest those in related disciplines, such as Literature, Religion, Sociology and French Studies.