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16 December 2017 7,834 4 View

Other methods to determine crystal size distribution (apart from the well-known laser-diffraction technique).

If there is a simpler, perhaps traditional technique for this CSD measurement; it could be useful for lower-divison laboratory in chemical engineering.

09 April 2013 8,864 2 View

Can I run spearman's correlation on non monotonic data? Is it advisable?

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

How to handle studies which report perfect effect sizes in a meta-analysis using Pearson's r?

I'm in the process of updating a meta-analysis and in one of the new studies, effect sizes are reported as Tau-U. Two of the effect sizes are reported as Tau-U = 1.00. I am using Andy Field's...

24 February 2021 2,265 3 View

Interpretation of Goodman - Kruskal Gamma squared?

Dear colleages, Eta squared is dominantly used in reflecting the explaining power the same manner as a squared partial correlation coefficient (R2p ) from multiple linear regression: as the...

22 February 2021 7,801 3 View

How do I group questions of SPSS under one variable for Spearman's r?

12 February 2021 5,379 5 View

What effect size should i use for a meta-analysis when study data violate normality assumptions?

I'm looking for advice regarding what effect size to use for meta-analysis. Our question is whether the number of individuals in a group affects the per-capita productivity of that group. Does...

10 February 2021 5,510 8 View

How to calculate cross correlation of two signals from the same source one of which is going through a filter ?

A signal is split into two parts and one of them is going through a filter (say, with a transfer function H(f)) and the other part stays unchanged. Then I want to know how to calculate their cross...

01 February 2021 5,101 8 View

Similarity between these two waveform? Similarity in terms of Shape?

Hi, These are the outputs generated by a system. Green-colored (nr) is desired output, while the system generates Red-colored (nf). I also have a dataset in CSV file. For this waveform, What...

21 January 2021 929 2 View

What can be the Research Design if I am looking for Correlation Coefficient and Regression Coefficient?

In our research our title includes the impact of academic anxiety on academic performance. This one is a quantitative research. Our data is numeric. Can someone suggest what can be the research...

21 January 2021 1,650 3 View

Is it possible to do correlation analysis and multiple regression analysis on my thesis using Excel ?

Is the excel sheet ok or I need econometrics tools such as SPSS and MATLAB?

18 January 2021 1,963 25 View

How to detect spurious correlation in a statistical dataset with binary variables?

17 January 2021 7,892 25 View