# Tagged Questions

174 views

### How to interpret parameter estimates correlated with the intercept parameter estimate?

I have performed a regression in SAS and extracted the estimated correlation matrix of the parameters, which includes the intercept. One of my variable parameters has a strong correlation to the ...
52 views

### Interpretation of the constant in random-effects estimation with AR(1) process

I'm estimating a Random Effects model with an AR(1) disturbance for the errors (xtregar in Stata). The reported results show that the constant (in Stata terminology) is positive and significant. The ...
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152 views

### Interpreting significance in hierarchical regression

I've run a Hierarchical Multiple Regression to understand the unique predictive value of three different maternal variables (maternal PTSD, maternal depression, and quality of the parent-child ...
129 views

### Strange result of a fixed effect model

If I am looking at sports data of dozens of soccer leagues over a year: ...
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### Interpretation of result in reference group

If I am looking at sports data of a whole league over a year: ...
197 views

### How to interpret a scatter plot for the whole model in a linear multiple regression analysis?

I am writing a very basic report on ability of three predictors (two dichotomous and one continuous) to predict the criterion. I created a scatter plot for the whole model, and all I have to do is ...
906 views

### Should you use normalized or non-normalized data to develope your model?

I am developing a linear model with 13 variables, including the target variable (online purchase revenue for items). So, I first built model1 with regular variable and then build model2 after ...
2k views

### How to interpret two-way interactions in Linear Mixed Effects modeling?

I've fit a Linear Mixed Effects model to some "accuracy" scores for a study with rats. The fixed effects are TrialNumber and ...
247 views