W. Joel Schneider

Getting Ready to Use R and RStudio

Tips for Installation and Configuration

W. Joel Schneider

Data Wrangling

Getting Data into Useable Formats

W. Joel Schneider

ANOVA in R

Plot group means and test to see if their differences are statistically significant.

W. Joel Schneider

Regression in R

A step-by-step introduction to regresion in R

W. Joel Schneider

Exploratory Factor Analysis with R

A step-by-step introduction to exploratory factor analysis in R

W. Joel Schneider

Random Intercept Models in R

Advanced Data Analysis (EDUC 8825)

In a one-way ANOVA, there is a fixed variable and a random variable. Usually, our focus is on the fixed variable—so much so that we might not realize that the random…

W. Joel Schneider

Random Slopes

Advanced Data Analysis (EDUC 8825)

This is a long tutorial. Don’t let that scare you. Once understood, the analyses themselves do not take that much time or effort to complete. My goal here is to give you a…

W. Joel Schneider

Multilevel Models with Three Levels

Advanced Data Analysis (EDUC 8825)

We are evaluating the effects of a school-wide reading intervention in which principals helped teachers implement an innovative reading curriculum that helps students to…

W. Joel Schneider

Generalized Linear Mixed Models

Advanced Data Analysis (EDUC 8825)

Some outcome variables are incompatible with the general linear model’s normality assumption. Binary outcomes cannot possibly have normally distributed error terms.…

W. Joel Schneider

Data Simulation for Multilevel Models

Advanced Data Analysis (EDUC 8825)

Once you learn how to simulate data, you will possess a data-science superpower. Generating simulated data allows you to run complicated “What-If” thought experiments, which…

W. Joel Schneider

Multilevel Modeling of Longitudinal Data in R

Advanced Data Analysis (EDUC 8825)

Longitudinal data analysis refers to the examination of how variables change over time, typically within individuals. Multilevel modeling allows us to study “unbalanced”…

Latent Growth Models

Advanced Data Analysis (EDUC 8825)

Latent growth modeling is a specific instance of a more general approach to creating models with a mix of observed and latent variables. This approach goes by many names…