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Case Study (Nunan, 1992), Sheila Herrera - Coggle Diagram
Case Study (Nunan, 1992)
Study of an "instance in action"
The case study is generally more limited in scope than in ethnograpghy
It can also employ quantitative data and statistical methods.
Researcher
Observes the characteristics of an individual unit
To analyze the intensity of the multifarious phenomena that constitute the life cycle of the unit
Types of case studies
Neo-ethnographic
The in-depth investigation of a single case by a participant observer.
Evaluative
An investigation carried out in order to evaluate policy or practice
Multi-site
A study carried out by several researchers on more than one site
Action
An investigation carried out by a classroom practitioner in his/her professional context
Reliability
Demonstrating that the study can be replicated with similar results
Validity
Construct validity
Establishing correct operational measures for the concepts being studied
Internal validity
Establishing a casual relationship
External validity
Establishing the domain or population to which a study's findings can be generalized
Sheila Herrera