case studies segments 32,33,34. case study process - overview
TRANSCRIPT
Case StudiesSegments 32,33,34
Case Study Process - Overview
CASE STUDY PROCESS - PLAN
2 PART DEFINITION OF CASE STUDIES1) A case study is an empirical inquiry that:
Investigates a contemporary phenomenon in depth and within the real-life context, especially when
The boundaries between phenomenon and context are not clearly evident.
2) The case study inquiry: Copes with the technically distinctive situation in which there will be many
more variables of interest than data points, and as one result Relies on multiple sources of evidence, with data needing to converge in a
triangulating fashion, and as another result Benefits from the prior development of theoretical propositions to guide data
collection and analysis
Case study process - design
5 components of case study design• For case studies, five components of a research design are especially
important:1. A study’s questions
2. A study’s propositions
3. A study’s units of analysis
4. The logic linking the data to the propositions
5. The criteria for interpreting the findings
Illustration of Case Study Topics
How to generalize from case studies
Basic types of designs for case studies
Case study design -prepare
Example TOC of case study protocol – innovative law enforcement practices
Case Study Protocol – question levels
Design v. Data Collection: different units of analysis
Case study Design - Collect
Six sources of evidence
Convergence / non-convergence of multiple sources of evidence
Maintaining a chain of evidence
Case Study Design -Analyze
4 analysis strategies1. Relying on theoretical
propositions (does your data fit the theory you started with?)
2. Developing a case description (used only when the case study was originally descriptively planned)
3. Use both qualitative and quantitative data (if the data is analyzed both ways)
4. Examine rival expectations
5 analytical techniques1. Pattern matching – compare empirically based patterns with
predicted ones
2. Explanation building – create a causal link from the ‘what’ to the ‘why’
3. Time-series analysis – look a the same thing(s) again & again over time
4. Logic models – stipulate a chain of events over an extended period of time
5. Cross-case synthesis – merge two cases together to create a stronger conclusion
Case Study Design - Share