Edexcel AS Psychology covers Units 1 and 2 of the A-level specification. The AS course is made up of five approaches in psychology. Each chapter in this book covers one of these and includes: an introduction, with definitions; methodology; content; detailed studies; key issues; a worked practical; a chapter summary; and definitions of key terms. An important feature of the Edexcel course is that although there is specified material, there are also many areas where choices are available. These include choices of study in each approach, and of key issues. This textbook covers all the specified material and all the suggested examples where choices are offered. Within each chapter there are features to improve students' skills, including: *Explore --advice on how students can further their interest in an area *Practice-- allowing students to try out what they have learnt *Study hint-- advice on how to prepare for examinations *Practical relevance -- linking students' learning of theory to their practical work *Key terms -- definitions of important terms Homework questions and extension essays (to stretch and challenge students) are given at the end of each chapter. An accompanying online resource offers guidance on exam technique and sample examination-style questions, together with model answers and detailed commentaries.It also includes additional material on selected studies and key issues. Links to this material are indicated in the textbook. A Teacher Guide containing answers to all questions and exercises in the book, plus PowerPoint presentations and worksheets to assist the teacher, is available for separate purchase.