Tagged Questions
0
votes
1answer
25 views
Need help selecting test for nominal IV with categorical DP
I am going to attempt to give you as much background as possible.
My independent variable is nominal and describes the number of days after which an insect was exposed to new conditions (0,1,3,5,7).
...
1
vote
2answers
45 views
Attempting to investigate a relationship between one variable and another that has three possible values
I'm looking to investigate the relationship between a series of variables on a recurring basis.
One variable will always be the dependent variable, and will take three possible values: ...
1
vote
2answers
61 views
Establishing relationship between discrete vector and categorical vector
I have a vector of positive integer counts taken from a time-series (365 observations/days).
I believe that there is variance in these counts due to the day of week they are observed and as I am ...
1
vote
0answers
403 views
Polychoric PCA and component loadings in Stata
I’m using Stata 12.0, and I’ve downloaded the POLYCHORICPCA.ado written by Stas Kolenikov, which I wanted to use it with data that I have that includes a mix of categorical and continuous variables. ...
1
vote
3answers
2k views
About correlation of ordinal variables having different number of categories and about correlation of mixed type of variables
I have three questions:
For data with different response categories (likert type or ordinal) what type of correlation should be calculated? I know for ordinal variables Spearman's rank correlation ...
2
votes
2answers
272 views
Regression with categorical factor variable and the correlation among the variables
lm(y~x1 + x2 -1)
where x1 is a continuous numerical variable and x2 is a categorical ...
3
votes
2answers
5k views
How do I study the “correlation” between a continuous variable and a categorical variable?
What's a meaningful "correlation" measure to study the relation between the such two types of variables?
In R, how to do it?
Thanks a lot!
3
votes
1answer
4k views
How to measure correlation between categorical variable?
I know that we can use Spearman rho to measure the correlation between numerical variables. But how to measure correlation between categorical variables? Thanks
0
votes
0answers
604 views
How to perform correspondence analysis on ordinal data in SPSS?
I have 500 rows and three columns. Two of the variables (that i want to analyze) are in ordinal form and the other in scale. However, when i run the correspondence analysis wizard in SPSS i can only ...
2
votes
3answers
6k views
How to correlate ordinal and nominal variables in SPSS?
I have imported an Excel document in SPSS which contains around 500 entries. Three columns are defined using Likert scales. I have substituted textual values with numerical values from 0 to 4. The ...
1
vote
0answers
425 views
How to best analyze non-mutually-exclusive categorical outcome with categorical predictor and categorical blocking factors?
Here is an example: I have a set of observations of different individuals from lots of different families of grasses:
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3
votes
4answers
1k views
Measure of association for 2x3 contingency table
I have a 2x3 contingency table - the row variable is a factor, the column variable is an ordered factor (ordinal level). I'd like to apply either symmetrical or asymmetrical association technique. ...
6
votes
2answers
2k views
Quickly evaluate (visually) correlations between ordered categorical data in R?
I'm looking for correlations between the answers to different questions in a survey ("umm, let's see if answers to question 11 correlate with those of question 78"). All answers are categorical (most ...
