While most books on missing data focus on applying sophisticated
statistical techniques to deal with the problem after it has occurred,
this volume provides a methodology for the control and prevention of
missing data. In clear, nontechnical language, the authors help the
reader understand the different types of missing data and their
implications for the reliability, validity, and generalizability of a
study's conclusions. They provide practical recommendations for
designing studies that decrease the likelihood of missing data, and for
addressing this important issue when reporting study results. When
statistical remedies are needed--such as deletion procedures,
augmentation methods, and single imputation and multiple imputation
procedures--the book also explains how to make sound decisions about
their use. Patrick E. McKnight's website offers a periodically updated
annotated bibliography on missing data and links to other Web resources
that address missing data.