random slope

How to Use the Fitted Mixed Model to Calculate Predicted Values

In this video I will answer a question from a recent webinar, Random Intercept and Random Slope Models.

We are answering questions here because we had over 500 people live on the webinar so we didn’t have time to get through all the questions.

If you missed the webinar live, this and the other questions in this series may make more sense if you watch that first. It was part of our free webinar series, The Craft of Statistical Analysis, and you can sign up to get the free recording, handout, and data set at this link:

http://TheCraftofStatisticalAnalysis.com/random-intercept-random-slope-models

How to Interpret the Coefficients of Fixed Effects in Random Slope Models

by Karen Grace-Martin Leave a Comment

In this video I will answer a question from a recent webinar, Random Intercept and Random Slope Models.

We are answering questions here because we had over 500 people live on the webinar so we didn’t have time to get through all the questions.

http://TheCraftofStatisticalAnalysis.com/random-intercept-random-slope-models

Why Call a Model with a Random Intercept and Slope a Random Slope Model?

by Karen Grace-Martin Leave a Comment

In this video I will answer a question from a recent webinar Random Intercept and Random Slope Models.

We are answering questions here because we had over 500 people live on the webinar so we didn’t have time to get through all the questions.

How to Produce Intercepts if the Random Slope Model Produces a Variance Estimate, Not Coefficients

by Karen Grace-Martin Leave a Comment

In this video I will answer a question from a recent webinar Random Intercept and Random Slope Models.

We are answering questions here because we had over 500 people live on the webinar so we didn’t have time to get through all the questions.

If you missed the webinar live, this and the other questions in this video series may make more sense if you watch that first. It was part of our free webinar series, The Craft of Statistical Analysis, and you can sign up to get the free recording, handout, and data set at this link:

http://TheCraftofStatisticalAnalysis.com/random-intercept-random-slope-models

Is a Random Intercept Different in Each Treatment Group?

by Karen Grace-Martin Leave a Comment

In this video I will answer a question from a recent webinar Random Intercept and Random Slope Models.

We are answering questions here because we had over 500 people live on the webinar so we didn’t have time to get through all the questions.

http://TheCraftofStatisticalAnalysis.com/random-intercept-random-slope-models

Specifying a Random Intercept or Random Slope Model in SPSS GENLINMIXED

by Karen Grace-Martin 10 Comments

One of the things I love about MIXED in SPSS is that the syntax is very similar to GLM. So anyone who is used to the GLM syntax has just a short jump to learn writing MIXED.

Which is a good thing, because many of the concepts are a big jump.

And because the MIXED dialogue menus are seriously unintuitive, I’ve concluded you’re much better off using syntax.

I was very happy a few years ago when, with version 19, SPSS finally introduced generalized linear mixed models so SPSS users could finally run logistic regression or count models on clustered data.

But then I tried it, and the menus are even less intuitive than in MIXED.

And the syntax isn’t much better. In this case, the syntax structure is quite different than for MIXED. [Read more…] about Specifying a Random Intercept or Random Slope Model in SPSS GENLINMIXED