Konstantinos I. Bougioukas

5 Questions 8 Answers 0 Followers

Questions related from Konstantinos I. Bougioukas

Could you inform me if there is a Journal Citation Reports (JCR) Impact Factor for the Evidence-Based Child Health: A Cochrane Review Journal ?

I tried to find a JCR Impact Factor for the Evidence-Based Child Health: A Cochrane Review Journal in the electronic platform of Web of Science but I could not find this Journal.

01 January 2017 9,079 0 View

Why the intercept of multiple linear regression in R differ slightly from that in SPSS?

I have run a multiple regression analysis in R and SPSS and the intercept term is different in two outputs. Is there a difference in methodology? All possible answers are welcome!

05 May 2015 7,987 4 View

Where can I find proof of Scheffé's method for multiple comparisons?

Any bibliographical reference is welcome. Thanks in advance!

03 March 2014 1,487 8 View

How can I calculate the effect sizes of small samples (<20) for non-parametric tests Wilcoxon and Mann-Whitney U?

I want to calculate the effect sizes of Wilcoxon and Mann-Whitney tests. Can I use the formula r=Z/sqrt(N) when the samples are smaller than 20 (where N is all the observations) ?

03 March 2014 755 17 View

Does SPSS always calculate the p-value of Wilcoxon and Mann-Whitney tests with a z-distribution approximation?

The output of SPSS gives z-score and p-value in any case. But If we have small samples we can't use z-approximation. Can we use the p-value of the output?

03 March 2014 3,813 3 View