67 views

Correct Stats to Run?

I am doing a study on body image perceptions and physical activity among adolescents. My hypothesis is adolescents who engage regularly in physical activity will have a more accurate perception of ...
371 views

Chi squared test with expected frequencies coming from another observation

I have done an experiment to test the performance of a system. In this experiment I collected answers from people. These answers are categorical (they were able to select on a 5 points scale). Each ...
518 views

Reporting both Kendall's tau and Goodman's Gamma, does it make sense?

In a data analysis, does it make sense to report both Kendall's tau and Goodman's Gamma? I guess not, since tau looks like a standardized form of Gamma. Or does it add some explanation?
2k views

Spearman's rho to correlate discrete with binary variables

Is it ok to use the Spearman's rho if one has to correlate a binary and a discrete (from 0 to 100) variable? Or Kendall's tau b would be a better choice?
646 views

Trying to determine the similarity of the distributions of labels

I asked this question on stackoverflow first since it is more of an implementation question, but I got no answers yet, therefore I'm asking it here again. I have a dataset which is annotated by 2 ...
3k views

Comparing time series: Pearson correlation, Kendall's tau b or Spearman's rho?

Which correlation coefficient is the most appropriate to compare 2 time series? I want to compare the variation of one variable for 2 regions, have regional data for the last 30 years. Is Pearson ...
3k views

Kendall Tau-b correlation coefficient becomes more significant with many additional ties

Say I have two vectors of length N, x = [1, 10, 12, ..., 5, 6] y = [2, 11, 10, ..., 7, 9] I compute the Kendall tau-b rank order correlation on these two vectors ...
3k views

How outliers can effect the correlation results (Spearman and Pearson)?

How outliers can effect the correlation results (Spearman and Pearson)? I have two series of data. The source of the data are different but both are temperature that are measured by different ...
4k views

If linear regression is related to Pearson's correlation, are there any regression techniques related to Kendall's and Spearman's correlations?

Maybe this question is naive, but: If linear regression is closely related to Pearson's correlation coefficient, are there any regression techniques closely related to Kendall's and Spearman's ...
433 views

Spearman's correlation useful with data that has an upper limit?

I am analyzing weather data from 2 sites, and trying to determine if they are correlated. For the most part, I am able to run linear regressions and Pearson's correlations since the data are ...
2k views

Spearman or Kendall correlation? [duplicate]

I would like to assess the correlation between a 7-category ordinal variable (X) and a number of other variables some of which are ordinal with 3-6 categories, others are continuous and a couple are ...