3 pairs of case study designs
intrinsic vs instrumental
single vs multiple
descriptive vs explanatory
intrinsic study design
interesting in particular case e.g. rare disease
instrumental study design
interested in the general phenomena
e.g. greif, or regret
single study design
one case
to test existing theory in real world
multiple study design
many cases for comparison
to generate new theory (using GT)
descriptive study design
description to gain new insights
explanatory study design
explain possible causal relationships
advantages of case study
wide theory range
rich data
ecological
versatile
disadvantages of case study
incompatible data collections sometimes
features of case studies (5)
idiographic (concerns are of the particular) context triangulation of methods temporal (over time) theory concerned