So now I am trying to find out how much it would effect the results to just carry out a linear regression with the variables as they are - as there is no form on non-parametric regression.

Thanks!

- Thread starter Jfield7
- Start date
- Tags mediation analysis regression skewed

So now I am trying to find out how much it would effect the results to just carry out a linear regression with the variables as they are - as there is no form on non-parametric regression.

Thanks!

Which variable is skewed, dependent of independent. Why not look at generalized linear models (GLM) and have you examine the models residual for normality or are you just talking about a singe variable?

As with many statistical issues I am sure you will find others who strongly disagree. I read one such book a decade ago that stressed that even few outliers could totally distort the results even with large samples.

The berry book is a good starter for regression assumptions generally not just for skew.