Chapter 5 addresses the general experimental design that is used in actual Experiments discussed in the book.

Chapter 6 and Chapter 7 discuss English Experiments and Japanese Experiments, respectively, as an illustration of the proposed methodology of language faculty science as an exact science. The presentation and the discussion of the Experiments, especially their results, are abbreviated in the book for reasons of space. But the designs and the results of all the Experiments discussed in the book will be provided in the accompanying website.

Chapter 8 provides "summary remarks," returning to some of the general methodological issues addressed in Chapters 1-4.