7.1 Experimental Method

7.2 Non-Experimental Method: Observations

7.3 Non-Experimental Method: Questionnaires and Interviews

7.4 Non-Experimental Method: Case Studies

7.5 Sampling

7.6 Validity and Reliability

7.7 Ethical Guidelines

7.8 Role of the Researcher, Materials and Processes

7.9 Dealing with Data