3. Data, Data, What Are the Data?—1 You are reading a book written by a social psychologist on the benefi ts of developing conversation skills on relationships. There are fi ve chapters, with each chapter describing a different conversation skill. Each chapter begins with a case study showing that when the individual learned the particular skill, his or her relationships improved. From a scientifi c point of view, are the case studies suffi cient to justify the conclusion that developing the conversation skills presented in the book will improve relationships? Discuss.