I would like to know different methods of sample size calculation for correlational studies.
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...
06 July 2017 3,120 9 View
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...
01 February 2017 8,051 8 View
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...
31 December 2016 5,359 1 View
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...
09 October 2016 9,524 6 View
Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...
03 March 2021 8,796 3 View
What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...
03 March 2021 1,401 3 View
Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...
01 March 2021 2,215 2 View
01 March 2021 3,905 5 View
I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...
01 March 2021 1,587 6 View
Pls share your thoughts
01 March 2021 7,330 4 View
Hello. I have a question whether if my coefficients (statistically significant) would be valid when VIFs are really high. In my model, there are independent variables(IV), moderating variables...
26 February 2021 956 13 View
If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...
26 February 2021 3,526 3 View
Hello, I have conducted analysis where the K-W and S-W have come out as p
25 February 2021 9,648 3 View
Hi all, I am running a partial correlation analysis on mood data. I want to see if there is a correlation between scores on a novel hypomanic mood scale and existing measures of hypomania - the...
25 February 2021 1,619 3 View