During the design phase of case study research, the researcher determines what approaches to use in selecting single or multiple real-life cases to examine in depth and which instruments and data gathering approaches to use. When using multiple cases, each case is treated as a single case.
These approaches are rarely used and are not discussed in this brief. Methods of data analysis used in quasi-experimental designs may be ex-post single difference or double difference (also known as difference-in-differences or DID). Main points Quasi-experimental research designs, like experimental designs, test causal hypotheses.
In this Third Edition of his bestselling text John W. Creswell explores the philosophical underpinnings, history, and key elements of each of five qualitative inquiry traditions: narrative research, phenomenology, grounded theory, ethnography, and case study.
Qualitative Research Design: An Interactive Approach provides researchers and students with a user-friendly, step-by-step guide to planning qualitative research. It shows how the components of design interact with each other, and provides a strategy for creating coherent and workable relationships among these design components, highlighting key design issues.
Social scientists employ a range of methods in order to analyse a vast breadth of social phenomena: from census survey data derived from millions of individuals, to the in-depth analysis of a single agent's social experiences; from monitoring what is happening on contemporary streets, to the investigation of ancient historical documents.