Stake's work continues to be significantly influential in defining the case study approach to scientific enquiry. He has helpfully characterised a few principal varieties of case study: intrinsic, instrumental and collective[eight]. An intrinsic case study is often undertaken to learn about a unique phenomenon. The researcher should define the https://elliotcrily.thezenweb.com/the-single-best-strategy-to-use-for-case-study-assignment-help-69049570