Book excerpt: Preface x -- Introduction to criminal justice research methods : theory and method -- Ethics in criminal justice research -- Research design : the experimental model and its variations -- The uniform crime reports and sampling -- Survey research : questionnaires -- Survey research : interviews and telephone surveys -- Participant observation and case studies -- Unobtrusive measures, secondary analysis, and the uses of official statistics -- Validity, reliability, and triangulated strategies -- Scaling and index construction -- Policy analysis and evaluation research -- Data analysis : a user's guide to statistics -- Glossary -- References -- Name index -- Subject index.