Standardized testing in the United States has been increasing at a rapid
pace in the last twenty-five years. The market for tests has not only
been expanding rapidly, but has also been changing sharply in structure
into a fractured marketplace. Indeed, one of the main features of this
book is that the market for standardized testing is highly fractured -
with segments of the market facing monopoly conditions, others facing
oligopoly conditions and still others where near free-market conditions
exist.
One of the main premises of the book is that the structures of markets
have strong implications for how those markets perform. While this
notion is widely accepted among economists, it is not widely appreciated
in educational research. A second motivation for the book is that very
little scholarly attention has been focused on the standardized testing
industry. This topic - the structure of the testing industry and
implications for the quality of tests and test use - affects how we
evaluate the learning of students, the effectiveness of teaching, the
quality of schools and the educational health of the nation. Of
particular concern to the authors is one vital aspect of test quality:
test validity.
This book is the most current and authoritative review and analysis of
the market for standardized testing.