# Research Aptitude MCQ - Research Aptitude

36:

Total error in a research is equal to

 A. sampling error + non-sampling error B. $\tiny \dpi{120} \sqrt{[(sampling error) + (non - sampling error)]^{2}}$ C. only sampling error D. sampling error * 100 Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. DM said: (4:35am on Saturday 23rd January 2016) a b whole squared under square root is the same as a b. so the options [A] and [B] are the same. mm said: (10:09pm on Thursday 23rd June 2016) total error= sampling error non-sampling error Xyz said: (3:19am on Friday 6th January 2017) Acc to me it is sampling non sampling error . Although if v cut root by square .. even then the result will b same Write your comments here:
37:

The validity and reliability of a research will be at stake when

 A. The author who is the source of information is biased, incompetent or dishonest B. The incident was reported after a long period of time from that of its occurrence C. The researcher himself is not competent enough to draw logical conclusions D. All of the above Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here:
38:

Seeing a very big rally it was reported that JD will win the election, the conclusion was based on :

 A. random sampling B. cluster sampling C. systematic samialing D. purposive sampling Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. monika said: (3:44am on Monday 18th May 2015) what is the specific characterstic of cluster sampling Write your comments here:
39:

Study the table which shows the income of five persons, and answer the question that follows?

 Year A B C D E 1960 55000 22000 43000 30000 40000 1965 75000 21900 47000 40000 60000 1970 76000 21880 42350 50000 65000 1975 83300 21750 72350 60000 90000 1980 93335 20000 54050 70000 75000 1985 102335 17000 84060 80000 105000 1990 103225 10500 85000 90000 120000

Which of the following conclusion is not correct?

 A. There has been an increase in the income of A but slight and steady decline in the income of B from 1960 to 1990 B. D and E have at least one property uncommon C. Percentage increase of A is higher than E D. C has fluctuating trend in his income Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Anjali said: (3:32am on Monday 6th May 2013) Acc to me it should be A Rahul said: (4:11am on Tuesday 10th November 2015) I think C is the wrong option answer must be A. can you please explain the option C Biju Nair said: (9:59pm on Monday 6th March 2017) A is correct as A got increase in income while B's income decline,Percentage increase of A is not higher than B, so C. is not the correct conclusion and the answer is C Write your comments here:
40:

The review of the related study is important while undertaking a research because

 A. it avoids repitition or duplication B. it helps in understanding the gaps C. it helps the researcher not to draw illogical conclusions D. all of above Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here: