## Solved – Why are the numbers on a ball in a lotto draw categorical nominal instead of categorical ordinal

Why are the number on a ball in a lotto draw categorical nominal instead of categorical ordinal? Don't the numbers have a natural ascending order and would thus be ordinal? Or am I making an incorrect assumption about numbers having a natural order? Best Answer You could color-code the balls without fundamentally changing the game. … Read more

## Solved – Correlation between two Likert items with a non-monotonic relationship

One of the assumptions for Spearman correlation is that there is a monotonic relationship between the two variables. I've created a scatterplot for two Likert item variables, but it seems impossible to get the desired monotonic plot. Must the monotonicity assumption be met for me to calculate the Spearman correlation? My second question is, can … Read more

## Solved – Interpret effect of adding random effects to ordinal regression (R – ordinal package – clmm)

I know there are already lots of questions around this topic (especially this one and this one) but I haven't really seen anything that directly helps me (It will be obvious I'm not a great statistician, but I'll do my best to explain). I am running an ordinal regression in R (clm and clmm). My … Read more

## Solved – Can you use normal correlation for vectors with only 2 (or 3), ordered, levels

When one wants to compute the correlation of two vectors of a continues variables, one uses pearson (or spearman) correlation. But what should (can) one use for the case of two vectors with 2 (or 3) ordered levels only? Is spearman enough, or does it require another method? I remember coming across someone who once … Read more

## Solved – Rank transformed 2-way ANOVA

I know I'm asking a lot of questions these days! Sorry about that, but I'm trying to work through my grad thesis data collected over the last 4 years, and am repeatedly tripping on my beginner's grasp on stats. The background: My basic question is the same as described in another question on this site. … Read more

## Solved – How to compare ranked data

I have some questions about how to analyze ranked data. The data looks like this: 4 groups of people with HIV and 16 other groups of people living in the same village were asked to rank 12 challenges for people with HIV according to importance. (f.e. physical health – social acceptance – mental health – … Read more

## Solved – How to compare ranked data

I have some questions about how to analyze ranked data. The data looks like this: 4 groups of people with HIV and 16 other groups of people living in the same village were asked to rank 12 challenges for people with HIV according to importance. (f.e. physical health – social acceptance – mental health – … Read more

## Solved – Logistic regression with ordinal independent variable: How to interpret odds-ratio

Basically what the title says. I have run a logistic regression with an ordinal independent variable (scale from 1-7) and get an odds-ratio of 2. I am unsure of how I interpret this? Do I find the odds of being in the "yes category" of the binary dependent variable given that the independent variable is … Read more

## Solved – Logistic regression with ordinal independent variable: How to interpret odds-ratio

Basically what the title says. I have run a logistic regression with an ordinal independent variable (scale from 1-7) and get an odds-ratio of 2. I am unsure of how I interpret this? Do I find the odds of being in the "yes category" of the binary dependent variable given that the independent variable is … Read more

## Solved – How to do a correlation between Likert scale and an ordinal categorical measure

I have a 5 pt Likert scale and a measure of time on the internet e.g. 1= less than 10 mins, 2=10-30 etc as well as number of SNS contacts (1=10-30, etc). I would like to estimate their correlation but I don't think I could do that directly as such. I computed a mean score … Read more