SELF-CHECK QUESTIONS 1. What are widely accepted data collecting techniques?
2. What are the benefits of sampling techniques?
3. What does the term “population” mean in sampling context?
3. What are two types of sampling techniques and what do they differ in?
4. What does the choice of sampling techniques depend on?
5. What do we call the technique which involves watching, recording, description, analysis and interpretation of
people’s behaviour?
6. What is the difference between participant and structured observation?
7. What do we call the data that have already been collected for some other purpose, processed and subsequently
stored?
8. What do written and non-written documentary secondary data include?
9. What types are interviews classified into according to the level of formality and structure?
10. What kind of interview would you use if you need to explore in depth a general area in which you are inter-
ested.?
11. What are other names for a non-directive interview?
12. What is a questionnaire?
13. What are two types of questionnaires according to the way they are administered ?
14. What types of questions are used in designing a questionnaire?
15. Why should all data be recorded using numerical codes?
16. What is the choice of table or diagram influenced by?
17. What types of diagrams are used to show specific values/ highest and lowest values/ trends/ proportions/ dis-
tribution relationships between variables?
18. What statistical methods are employed to describe the central tendency/ dispersion/ to predict values?
19. What does the process of qualitative analysis generally involve?