The major objective of the investigation presented in this book is to assess the validity of analogies, a component of the GRE General Test, from a perspective other than the prediction of grade-point average. The book examines a very practical problem in test construction: the apparent inability of item writers to regularly and predictably construct verbal items in general, and analogy items in particular, that are both difficult and sufficiently discriminating. The book demonstrates that the incorporation of results from the cognitive laboratory into the test development process is a natural step and should be attempted. The book focuses on analogical reasoning because it is a pervasive human-thought process.