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Book Review: Robust Statistics

that is less than 5%-not 25 to 50% as is observed in the studies validating the randomized response procedure. In Chapter 4, the authors suggest that the randomized response procedure is better than other elaborate schemes for eliciting sensitive information. In their concluding remarks they caution the researcher against designing a large study without a pilot study. An advantage of the procedure is that a single interview can be used to obtain sensitive information via randomized response and nonsensitive information via traditional questions. Overall, the book is well written and all the major topics in the area of randomized response are covered. Anyone who plans to conduct a survey of a sensitive characteristic should definitely read this book. The guidelines on designing the study and the sample questionnaire in the Appendix should help greatly. U. N. UMESH Washington State University