After reading this chapter, you should be able to:
- identify non-experimental quantitative data collection approaches used for human subject research in political science, and describe the commonalities amongst these approaches;
- outline the primary modes of survey research, explaining how different modes are subject to coverage and non-response bias and to interviewer effects;
- describe the advantages and limitations of using secondary datasets, including secondary survey data, big data, and official statistics;
- distinguish among quantitative measures, identifying common closed question types and assessing survey questions for potential problems; and
- critically assess research that uses data collected from surveys and secondary data sources.