The new edition of this market-leading textbook had been updated and revised to embrace current developments in this area of psychology. Changes to this edition include: * Updated material in the areas of quasi-experiments and qualitative research, * Improved design and greater use of diagrams, making the text easier to follow, * Structured questions that match the developments in A Level and provide superb opportunities for revision, * Inclusion of answers to in-text questions so students can check their progress as they go along, * Clearer calculation tables--ideal for those who are not so good with mathematical concepts, * A comparison between a "good" and "excellent" report, so students can understand what examiners are looking for, and * Two synopses of qualitative reports. Above all, this book makes the potentially difficult area of psychology more understandable to its audience.