Coefficient in linear regression changes drastically if additional variables are added. Why?
1348
Is there a difference between 'controlling for' and 'ignoring' other variables in multiple regression?
69616
Significance contradiction in linear regression: significant t-test for a coefficient vs non-significant overall F-statistic
106004
Linear Regression makes impossible predictions
22754
"matrix is not positive definite" - even when highly correlated variables are removed
132450
What is wrong with the linear regression variance estimator when p+1>n?
120206
How to interpret coefficients of $x$ and $x^2$ in same regression
27203
Omitted dummy variable coefficient in OLS
135366
Why does the linear regression of "x on y" intersect with the linear regression of "y on x" at (x̄, ȳ)?
132863
How do I interpret the results of a regression which involves interaction terms?
94847
Why is GLM different than an LM with transformed variable
92113
Local polynomial regression: Why does the variance increase monotonically in the degree?
3998
Magnitude of standardized coefficients (beta) in multiple linear regression
39144
How does the correlation coefficient differ from regression slope?
125362
How is adjusted coefficient of determination ($R^2$) linked to the F-values of a test against zero when adding a new variable?
11239
Interpreting coefficient in GLM with categorical explanatory variables
122714
Regression coefficient greater than 1: is it possible?
127924
How to deal with an error such as "Coefficients: 14 not defined because of singularities" in R?