a. What is the difference between open ended and close ended survey items? Discuss ordinal, categorical nominal, and interval Numerical Variables. How may each variable type be used within a survey? What is the difference between unipolar and bi-polar scales? What is meant by double barrelling and why it should be avoided.
b. Why is it a bad idea to make the survey instrument too long or too short? What might be an optimum number of questions for an organizational survey? Explain.