Sample Exam Question

Topics: Sampling, Stratified sampling, Nonprobability sampling Pages: 4 (588 words) Published: August 21, 2013
Please answer FOUR (4) questions only. Each question carries 25 marks. You should spend no more than thirty (30) minutes on each question.

Question 1

a) Explain what each of the following terms mean in the context of research: i) Population
ii) Probability sampling
iii) Non-probability sampling
iv) Representative sample
(8 marks)

b) Discuss FOUR (4) main characteristics of a good research. (16 marks)

Total: 25 marks

Question 2

a) It is advantageous to develop a directional hypothesis whenever we are sure of the predicted direction. Define directional hypothesis and identify its advantages. (10 marks)

b) Explain why referencing is important in any research; provide an example of a reference and differentiate the term ‘Citation’ from ‘Referencing’. (15 marks)

Total: 25 marks

Question 3

a) Discuss in detail about the subject’s rights using an example. (10 marks)

b) Define the following and provide an example to support each of your definitions.

i) Fabrication
(3 marks)
ii) Falsification
(3 marks)
iii) Plagiarism
(3 marks)

c) “If a control group is a part of an experimental design, one need not worry about controlling other exogenous variables.” Explain this statement. (6 marks)
Total: 25 marks

Question 4
‘Dr. S is a post-doctoral student in computer science working on some programs that eliminate computer viruses. Two other graduate students are working with her on the project, which is directed by a senior researcher. Dr. S has just received an email from a research team that is working on a similar project at another university. The other team would like Dr. S to share some preliminary data and designs related to the project. Dr. S has not applied for a patent on this research, although she has discussed possible patents with her supervisor. Dr. S faces a difficult choice.”

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