Regression

Also known as: Linear Regression, Statistical Regression, OLS

Statistical technique quantifying the relationship between a dependent variable and one or more predictor variables.

Regression is a family of statistical techniques that quantify the relationship between a dependent variable (what we want to explain or predict) and one or more predictor or independent variables (the factors that explain the dependent variable's behavior).

In market research, regression has applications in: Driver Analysis (which product or service attributes most drive overall satisfaction), purchase behavior prediction (which factors best predict purchase probability), and Marketing Mix Modeling (how each marketing channel contributes to sales).

Main types: Multiple Linear Regression (continuous dependent variable), Logistic Regression (binary dependent variable: buy/don't buy), and Multinomial Regression (dependent variable with multiple categories).