assignment 4 res 500 from slides

Direct answers from slides, and support answers with 3 peer-rivewed articles

Assignment Questions:

  • Explain observation and experimentation with help of an example. What are different sources of secondary data information? (2 Marks)
  • What are the essential differences among nominal, ordinal, interval, and ratio scales? (1.5 Marks)
  • Discuss Sample versus Census. Describe the differences between a probability sampling and a non-probability sampling. (2 Marks)

4.Distinguish between: (1.5 Marks)

a.Direct and indirect questions

b.Open ended and closed questions

c.Research, investigative, and measurement questions.


  • Assignment-4 covers Model 10 &11
  • Your assignment is required to be four to five pages in length, which does not include the title page and reference pages, which are never a part of the content minimum requirements.
  • Support your submission with course material concepts, principles from the textbook and at least three scholarly, peer-reviewed journal articles. Use the Saudi Digital Library to find your resources.