This book's purpose is to enable educational researchers to make
better use of the huge longitudinal and cross-sectional data files
that are now readily available. Of value to experienced researchers
and undergraduates alike, the book focuses primarily on the
planning and design of research rather than implementation of data
base information. Its chapters address a variety of vital questions
including:
* What variables are present in each of the major national data
bases?
* What are the problems and dangers in making comparisons across
data bases?
* What factors invalidate comparisons of test scores across data
bases?
* In what ways can data from certain data bases be physically
merged with data from other data bases?
This text clearly demonstrates what can be done with large
national data bases and, perhaps equally important, what cannot be
done -- or done only if certain precautions are taken.
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