Click on the following links. Please note these will open in a new window.

Video Clips

Interpreting Correlations in Correlation Matrix
This video describes how to interpret correlation coefficients in a correlation matrix in research studies (5:54).

Correlation vs. Causation
Short video on the difference between correlation and causation (2:18).

Pearson’s r
Describes Pearson’s r correlation and provides examples using data, scatterplots, and formulas (4:02).

Spearman Correlation
Describes Spearman correlation and provides examples using data, scatterplots, and formulas (3:12).

Linear Regression
Provides an overview of linear regression and provides examples using data, equations, and examples (4:31).

Scatterplots
Brief overview and interpretation of scatterplots (1:20).

Introduction to Regression Analysis
This easy-to-understand lecture introduces the concept of regression analysis with examples (14:00).

Correlation and Simple Regression
This Dave Brodbeck lecture describes correlation and regression and how they are related (41:32).

Audio Clips

What is Correlation?
Describes correlations and provides numerous examples of data and what correlations mean (6:55).

Correlation and Causation
This NPR podcast discusses correlation and causation with Charles Wheelan, author of the book Naked Statistics: Stripping the Dread from the Data (18:08).

TED Talk: Correlation Between Cues and Beliefs
An interesting TED Talk by psychologist David Pizarro demonstrates a correlation between sensitivity to disgusting cues and moral and political beliefs (13:59).

Modeling with Regression
This lesson walks through how to construct a regression model (5:32).

Web Resources

Phi Coefficient
Definition and interpretation of phi coefficient.

Range Restriction Demonstration
This simulation illustrates the effect of restricting the range of scores on the correlation between variables.

What is Linear Regression?
This website gives a description of linear regression. Also includes definitions of terms and short video.

Linear Fit Demonstration
This simulation allows users to explore fitting data with linear functions.

Regression Basics
This website provides an in-depth description of the basics of regression.