The Preface starts with:
(The formatting is lost here.)

***
This book grew out of the concern addressed in my 2003 paper "Falsifiability and repeatability in generative grammar: A case study of anaphora and scope dependency in Japanese" and the earlier (1998) paper "Null object and sloppy identity in Japanese." The concern is how we can evaluate proposals in our research so as to be able to secure as much progress as possible in what we do. The concern is directly related to questions such as what our object of inquiry is, what counts as evidence for or against our hypotheses about our subject matter, whether and how we can deduce definite predictions from our hypotheses, how such predictions can be put to rigorous empirical test, and how we should interpret results of our experiments. The subsequent work led to the 2009 book manuscript A foundation of generative grammar as an empirical science and eventually to this book.
　　　In the meantime, the first template for the general design of on-line experiments was developed in 2004 and it has since undergone changes, reflecting various stages of the methodological articulation that has led to the proposal to be laid out and illustrated in this book. A number of on-line experiments have been conducted over the years. The empirical illustration of the proposed methodology for language faculty science in this book is based on some of those experiments, the details of which are available at the accompanying website (http://www.xxx).
　　　Concern with empirical rigor in research in linguistics has resulted in a recent explosion of "experimental" research. Such research―to the extent that they deal with informants―typically deal with a group of informants and analyze the distribution of their reactions by statistical methods developed for, and utilized in, fields such as agricultural, social and behavioral sciences. We also conduct multiple-informant experiments. But, for us, a multiple-informant experiment is none other than a collection of single-informant experiments. Our predictions are about individual informants, not about a group of informants. They are definite predictions, not about a tendency or about a difference. Our experiments test our definite predictions about individual informants. One may wonder, quite understandably, whether and how it might be possible to deduce definite predictions about individual informants and obtain experimental results in accordance with such predictions. The following chapters address how.
***