problem 1: Illustrate the main purpose of the problemnaires and observation forms?

problem 2: Describe how the mode of administration influences the problemnaire design.

problem 3: How would you find out whether a specific problem must be comprised in a problemnaire?

problem 4: What do you mean by the term double-barreled problem?

problem 5: What are the reasons which respondents are not able to answer the problem asked?

problem 6: Describe the errors of commission, telescoping and creation. What can be done to decrease these errors?

problem 7: Describe the concepts of aided and unwilling to answer the particular problems?

problem 8: Illustrate the reasons which respondents are unwilling to answer the particular problems?