1. Every research needs a design or a structure before data collection or analysis can commence. However, selecting a research design implies the method that will be useful for data collection and analysis for the study. (i) Explain qualitative and quantitative research designs indicating circumstances where each approach would be useful. (ii) State and briefly explain four (4) differences between the qualitative and quantitative research designs. [30 marks) 2. With example(s) stated in a sentence, explain the following research terminologies (30 marks). (i) Null hypothesis Alternative hypothesis (iii) Purposive sampling (iv) Snowball sampling Attribute SECTION B 3. Explain three (3) importance of literature review in the research process. (30 marks). 4. Using relevant examples, explain the five components of a constructed media message. (30 marks)