[Solved] An umbrella term for behavior aimed at sexual self-stimulation is A)autoeroticism. B)erotic fantasy. C)masturbation. D)foreplay. Regression Equation: The regression equation is a mathematical formula used in linear regression to model the relationship between independent and dependent variables. Dummy Coding: A statistical technique used in regression analysis where categorical variables are converted into a series of binary variables. Categorical Variables: Variables that represent types or categories and are typically qualitative in nature. Predictor Variable: A variable that is used in statistical models to forecast or predict the outcome of a dependent variable.