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Research can be classified in many different types such as :- Basic research Applied research Problem solving research Quantitative research Qualitative research
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Research methods

Types of research:
Case studies
Participant and non-participant observation
Observational trials
Studies using the Delphi method*

The Delphi method is a structured communication technique ormethod, originally developed as a systematic, interactive forecasting method which relies on a panel of experts. The experts answer questionnaires in two or more rounds.

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