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1 vote
1 answer
28 views

Pearson chi square and correlation

My data are ordinal Pearson chi squared test value is 4.664 And asymp sig is 0.97 so the data are independent However pearson's R =-0.309 And the approx sig=0.037 Can they be independent and ...
Simona ysf's user avatar
2 votes
0 answers
2k views

Correlation between binary variables

Long story short - I am lost among the ways to check for relation (whether there is any) between binary variables. Context - I am working on a side project where I try to analyze marketplace data and ...
cinnamon's user avatar
0 votes
0 answers
136 views

Will ranking "correlation" of variables by Pearson's return the same results as chi-square and F stats?

Generally speaking my understanding and experience is that when I have some target variable and want to see which other variables best correlate with it (for instance to build a predictive model), ...
Josh's user avatar
  • 308
1 vote
1 answer
85 views

Analyzing a categorical variable with 'Only A', 'Only B', and 'Both A and B'

I may not be searching the correct terms to get an education on this seemingly simple question: I am analyzing the correlation between two categorical variables with Pearson's chi-square test and its ...
oustella's user avatar
1 vote
1 answer
85 views

Which correlation formula should be used when we add up many measurements of the ordinal type?

Let's say, I have two set of questions; one set is to detect depression (var1) where the response of each question is in Likert scale and another set of questions to detect hopelessness (var2) where ...
Md Sabbir Ahmed's user avatar
1 vote
2 answers
2k views

Pearson's Correlation for percentage data (observations within variable sum up to 100%)

Suppose the following dataset: ...
Matek's user avatar
  • 991
1 vote
0 answers
6k views

Corelation between two dichotomous variables [closed]

I have a data from a research with responses (yes/no) about three questions (A,B,C) and I would to see if the variables are correlated. First of all i compared the proportion of agreement(yes-yes, no-...
Oalvinegro's user avatar
9 votes
0 answers
1k views

Correlation coefficient on binary variables

I have two binary variables and want to test their association. From what I've read I need to use the chi-squared ($χ^2$) test. The measure of their association is then described through the Phi ...
nazz's user avatar
  • 111
0 votes
2 answers
1k views

Should I use Chi-squared, regression, or Pearson’s Correlation Coefficient?

My research question is : What’s the relationship between the education of a student’s parents and one’s SAT scores? I will carry out my survey by interviewing students about their final SAT score ...
Siyu Zhang's user avatar
0 votes
1 answer
39 views

Which is the more reliable method for measuring correlation between dichotomous variables?

I would like to know which are the most commons methods for measuring correlation with dichotomous/categorical variables. I often use Chi-square, but I have seen that some people use Pearson ...
Simone's user avatar
  • 321
0 votes
1 answer
29 views

Given a certain Pearson correlation between A and B, can I extimate the probability that two groups with different mean A will have different mean B?

let's say I look for the correlation between variables A and B and find it to be high (say 0.80), eg height and weight of people. Can I then expect that if I encounter two populations with different ...
magnolia1's user avatar
5 votes
2 answers
3k views

Benford's law - interpret the results of Pearson's Chi-squared test

These are the results after applying the R - package benford.analysis ...
Math Info's user avatar
  • 131
1 vote
2 answers
2k views

Why are Pearson's R and Spearman correlation values are negative how to interpret them?

My variables are categories. My SPSS result shows that Phi and Cramer's V are positive while Pearson's R and Spearman correlation values are negative. How do I interpret this? ...
Mee Moore's user avatar
0 votes
1 answer
86 views

converting a chi-square with more than one degree of freedom into a pearsons r

I want to run a power analysis for a study using correlations between two continuous variables. Previous research with the variable I am interested in used a Kruskal-Wallis test to look at differences ...
asf's user avatar
  • 13
1 vote
1 answer
7k views

Chi-squared & Pearson correlation coefficient

I have just ended my math's assignment and my chi-squared test approved the null hypothesis that my data are independent; however, pearson's correlation coefficient is -0.23. Can they therefore be ...
Bregier's user avatar
  • 11