All Questions
4
questions
0
votes
1
answer
537
views
How to deal with negative values after subtracting the background?
I am working with Luminex data and have a question regarding the treatment of negative values after subtracting the background average. Specifically, I would like to know if these negative values need ...
- 11
2
votes
2
answers
554
views
Non Parametric Correlation Solution?
I was setting out to do point biserial correlation to look at the relationship between a dichotomous variable and a continuous one, however my continuous variable is non-normal.
The two variables are ...
- 21
1
vote
1
answer
168
views
Using nonparametric tests with small samples even when data are normaly distrubuted
Is it appropriate to use a nonparametric test with a small sample (e.g., less than 65 people) even when data are normally distributed? For example, using the Spearman correlation? Actually my data is ...
7
votes
1
answer
5k
views
Difference between point-biserial and rank-biserial correlations
According to the wikipedia article the point-biserial correlation is just Pearson correlation where one variable is continuous but the other is dichotomous (e.g. Yes/No, Male/Female). However the ...
- 4,452