Jamal Giri

5 Questions 13 Answers 0 Followers

Questions related from Jamal Giri

Random samples and consent

I am conducting a study where the required sample size is 119. I am planning to take samples using simple random sampling. The query is: if a randomly selected sample does not give consent for the...

07 July 2017 3,179 9 View

Can we present a study in a conference in a poster/ oral form if it is already published?

A few months back I had submitted a paper for publication. After some time, I also submitted its abstract for a conference (as a poster). Now, the paper is published in a journal. Today, I got an...

02 February 2017 8,116 8 View

Sample size calculation for association studies?

If we have chi square value (which shows the association between two variables) from a previous study, can we use this chi square value to calculate sample size for a new study? I have heard about...

01 January 2017 5,428 1 View

Which formula/formulae can be used for sample size calculation in correlational studies?

I would like to know different methods of sample size calculation for correlational studies.

12 December 2016 8,294 0 View

How to obtain ethical clearance for a multi-center study?

We are planning to conduct a questionnaire-based study among dental students of different dental colleges of Nepal (within a country). Should we obtain ethical clearance from each institution's...

10 October 2016 9,596 6 View