Modeling Multiple Independent Variables
This video discusses models where there are multiple independent variables, that is, models that measure several potential causes of the effect being studied. It also discusses how the models can be analyzed with multiple regression or ANOVA, depending on what kind of variables they are.
The text comes from from Research Methods and Survey Applications by David R. Dunaetz. You can find a free pdf of this book by googling the title or you can buy a hard copy on Amazon.