Understanding and Detecting Homoscedasticity in Statistical Analysis

[mountain]

I have tried to search for links about testing for homoschedasticity and could not find any useful ones which explain what it means and how i can test for it.

Hope for any inputs.


Thanks.

 

[juvenal]

You might want to try searches on

heteroskedasticity

since that's the opposite.

Any decent regression analysis textbook should cover this topic, especially in econometrics.

 

[Johnny Numbers]

While we're on the subject, by my understanding, heteroskedasticity is when the variance of the error doesn't match the variance of the empirical linear regression? Am I correct?