NATIONAL OPEN UNIVERSITY OF NIGERIA
14/16 AHMADU BELLO WAY, VICTORIA ISLAND, LAGOS
SCHOOL OF SCIENCE AND TECHNOLOGY
MARCH/APRIL 2014 EXAMINATION
COURSE CODE: AEM772
COURSE TITLE: RESEARCH METHODS AND SOCIAL STATISTICS EXAMINATION
TIME ALLOWED: 3HOURS
INSTRUCTION: ANSWER 5 QESTIONS ONLY. ALL QUESTIONS CARRY EQUAL MARKS
1a. Discuss fully the relevance of interviews as a means of generating information (10 Marks)
1b. Highlight the significance of observation surveys in the conduct of research. (10 Marks)
Write short notes on the following:
On-farm Research;
Basic research;
Action research. (20 Marks)
3a. Discuss the merits and demerits of obtaining data from public or private sources. (10 Marks)
3b. Discuss the factors to be considered in the development of a theory. (10 Marks)
4. Briefly discuss the role of the Mean, Median and Mode as measures of central tendency and use the data below to calculate the variables mention above
25, 30, 25, 38, 42, 39, 68, 11, 11, 11, 25, 28, 25, 38, 39, 30, 38, 20, 20, 20, 20. (20 Marks)
5. Define the following terms:
a) Variable
b) Appendix
c) References
d) Element (20 Marks)
6a. With the aid of a diagram differentiate between a Bar chart and a Pie chart. (10 Marks)
6b. Distinguish between an open ended and a close ended questionnaire highlighting the advantages and disadvantages of each (10 Marks)
7. Define the following terms
Critical Region
b) Type 1 Error (α)
c) Type 2 Error (β)
Level of significance
For the 2015 – till date past questions for this course CLICK HERE
Contact me for your TMA, GST302 Business plan writeup, Project Writeup and also get your Exam Summary for this course.
