What are the similarities and differences between the following research concepts from your experience in dealing with research students?
1. research philosophy and research theoretical perspective
2. research paradigm and research approach
3. research methodology and research method
4.research method, research strategy and research design
5. research methods and research techniques
6.research tools and research instruments
7. trustworthiness versus reliability and validity
Kindly attend to these issues for the benefit of many an academic including me.