Translation of: The practice of social research,11th ed. / Earl Babbie; Belmont, CA : Thomson Wadsworth, 2007.

English contents : pt. 1, Introduction to inquiry. Human inquiry and science ; Paradigms, theory, and social research ; The ethics and politics of social research -- pt. 2, The structuring of inquiry : quantitative and qualitative. Research design ; Conceptualization, operationalization, and measurement ; Indexes, scales, and typologies ; The logic of sampling -- pt. 3, Modes of operation : quantitative and qualitative. Experiments ; Survey research ; Qualitative field research ; Unobtrusive research ; Evaluation research -- pt. 4, Analysis of data : quantitative and qualitative. Qualitative data analysis ; Quantitative data analysis ; The elaboration model ; Statistical analyses ; Reading and writing social research -- Appendixes. Using the library ; GSS household enumeration questionnaire ; Random numbers ; Distribution of chi square ; Normal curve areas ; Estimated sampling error ; Twenty questions a jounalist should ask about poll results.