SECTION B (Answer any TWO questions from this section) Question 3 (10 marks) (a) Explain the meaning and purpose of measurement. [3 marks] (b) Figure | consists of three variables. For each variable, state the type of variable (qualitative, quantitative discrete or quantitative continuous) and the appropriate level of measurement. Figure 1. Variable (i) Daily temperature of a meeting room. (ii) Gender of workers in the Accounts department. (iit) Number of employees in the lunch line each day. [3 marks] (c) Name and explain two methods used to assess reliability of an instrument. [4 marks] Question 4 (10 marks) (a) Explain the differences between longitudinal study and cross-sectional study. [2 marks] (b) Explain the meaning of "Conceptualization\" and \"Operationalization' in the context of research. [4 marks] (c) Discuss the importance of any three (3) Ethical principles in research. [4 marks] Question 5 (10 marks) (a) Explain how the following sampling techniques are carried out: (i Simple random sampling (ii) Stratified sampling (iii) Systematic sampling (iv) Snow-ball sampling [8 marks] (b) Explain the difference between Phenomenology and Ethnography as it relates to research. [2 marks]